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131332311201312 = 25321335078074573
BaseRepresentation
bin11101110111001000101111…
…110000011011011000100000
3122020000020122120120211112200
4131313020233300123120200
5114203222033131420222
61143153121510453200
736443306050105224
oct3567105760333040
9566006576524480
10131332311201312
11389347a1935181
12128910b9364200
13583877880c150
142460736ad8784
15102b3c4e7ceac
hex77722fc1b620

131332311201312 has 72 divisors (see below), whose sum is σ = 402205203065484. Its totient is φ = 40409941906944.

The previous prime is 131332311201307. The next prime is 131332311201319. The reversal of 131332311201312 is 213102113233131.

131332311201312 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 32 + 311 + 2 + 0 + 1 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 120392596190736 + 10939715010576 = 10972356^2 + 3307524^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1313323112013122 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131332311201319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17539033543 + ... + 17539041030.

Almost surely, 2131332311201312 is an apocalyptic number.

131332311201312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131332311201312 is an abundant number, since it is smaller than the sum of its proper divisors (270872891864172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131332311201312 is a wasteful number, since it uses less digits than its factorization.

131332311201312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35078074602 (or 35078074591 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 131332311201312 its reverse (213102113233131), we get a palindrome (344434424434443).

The spelling of 131332311201312 in words is "one hundred thirty-one trillion, three hundred thirty-two billion, three hundred eleven million, two hundred one thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 72 78 96 104 117 144 156 208 234 288 312 416 468 624 936 1248 1872 3744 35078074573 70156149146 105234223719 140312298292 210468447438 280624596584 315702671157 420936894876 456014969449 561249193168 631405342314 841873789752 912029938898 1122498386336 1262810684628 1368044908347 1683747579504 1824059877796 2525621369256 2736089816694 3367495159008 3648119755592 4104134725041 5051242738512 5472179633388 7296239511184 8208269450082 10102485477024 10944359266776 14592479022368 16416538900164 21888718533552 32833077800328 43777437067104 65666155600656 131332311201312