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131312231303032 = 23132593486933131
BaseRepresentation
bin11101110110110110000010…
…111001101100011101111000
3122012221022211011201022110101
4131312312002321230131320
5114202404422203144112
61143140001204525144
736441665334560563
oct3566660271543570
9565838734638411
10131312231303032
11389272282a441a
12128892346b07b4
1358368c870b530
14245d78dd754da
15102aaec1cd757
hex776d82e6c778

131312231303032 has 32 divisors (see below), whose sum is σ = 265251954325680. Its totient is φ = 60582272302080.

The previous prime is 131312231302979. The next prime is 131312231303053. The reversal of 131312231303032 is 230303132213131.

It is a happy number.

It is a super-2 number, since 2×1313122313030322 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 243196894 + ... + 243736237.

Almost surely, 2131312231303032 is an apocalyptic number.

It is an amenable number.

131312231303032 is an abundant number, since it is smaller than the sum of its proper divisors (133939723022648).

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

131312231303032 is a wasteful number, since it uses less digits than its factorization.

131312231303032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486935743 (or 486935739 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 131312231303032 its reverse (230303132213131), we get a palindrome (361615363516163).

The spelling of 131312231303032 in words is "one hundred thirty-one trillion, three hundred twelve billion, two hundred thirty-one million, three hundred three thousand, thirty-two".

Divisors: 1 2 4 8 13 26 52 104 2593 5186 10372 20744 33709 67418 134836 269672 486933131 973866262 1947732524 3895465048 6330130703 12660261406 25320522812 50641045624 1262617608683 2525235217366 5050470434732 10100940869464 16414028912879 32828057825758 65656115651516 131312231303032