31153212641313 has 40 divisors (see below), whose sum is σ = 53186629320000. Its totient is φ = 17801535330720.

The previous prime is 31153212641279. The next prime is 31153212641371. The reversal of 31153212641313 is 31314621235113.

31153212641313 is a `hidden beast` number, since 3 + 1 + 1 + 5 + 3 + 2 + 1 + 2 + 641 + 3 + 1 + 3 = 666.

It is not a de Polignac number, because 31153212641313 - 2¹⁶ = 31153212575777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31153212641713) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 35635563 + ... + 36499311.

It is an arithmetic number, because the mean of its divisors is an integer number (1329665733000).

Almost surely, 2^{31153212641313} is an apocalyptic number.

It is an amenable number.

31153212641313 is a deficient number, since it is larger than the sum of its proper divisors (22033416678687).

31153212641313 is an equidigital number, since it uses as much as digits as its factorization.

31153212641313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927379 (or 927370 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

Adding to 31153212641313 its reverse (31314621235113), we get a palindrome (62467833876426).

The spelling of 31153212641313 in words is "thirty-one trillion, one hundred fifty-three billion, two hundred twelve million, six hundred forty-one thousand, three hundred thirteen".