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131201131443020 = 22510616182899691
BaseRepresentation
bin11101110101001110100100…
…110101010111001101001100
3122012112201001102201122210022
4131311032210311113031030
5114144044404122134040
61143012545005201312
736430653226416302
oct3565164465271514
9565481042648708
10131201131443020
11388940a63251a1
121286b7a9560238
1358292a13ac5b2
142458250a8c272
151027c9877b6b5
hex7753a4d5734c

131201131443020 has 24 divisors (see below), whose sum is σ = 275782057861968. Its totient is φ = 52430989371200.

The previous prime is 131201131443001. The next prime is 131201131443047. The reversal of 131201131443020 is 20344131102131.

It is a super-2 number, since 2×1312011314430202 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3091428626 + ... + 3091471065.

It is an arithmetic number, because the mean of its divisors is an integer number (11490919077582).

Almost surely, 2131201131443020 is an apocalyptic number.

131201131443020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131201131443020 is an abundant number, since it is smaller than the sum of its proper divisors (144580926418948).

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

131201131443020 is a wasteful number, since it uses less digits than its factorization.

131201131443020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6182900761 (or 6182900759 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 131201131443020 its reverse (20344131102131), we get a palindrome (151545262545151).

The spelling of 131201131443020 in words is "one hundred thirty-one trillion, two hundred one billion, one hundred thirty-one million, four hundred forty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 1061 2122 4244 5305 10610 21220 6182899691 12365799382 24731598764 30914498455 61828996910 123657993820 6560056572151 13120113144302 26240226288604 32800282860755 65600565721510 131201131443020