31312315032032 has 24 divisors (see below), whose sum is σ = 62211680962200. Its totient is φ = 15512523041664.

The previous prime is 31312315031957. The next prime is 31312315032059. The reversal of 31312315032032 is 23023051321313.

It is a super-2 number, since 2×31312315032032² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31312315031986 and 31312315032004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4488573782 + ... + 4488580757.

It is an arithmetic number, because the mean of its divisors is an integer number (2592153373425).

Almost surely, 2^{31312315032032} is an apocalyptic number.

31312315032032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31312315032032 is a deficient number, since it is larger than the sum of its proper divisors (30899365930168).

31312315032032 is a wasteful number, since it uses less digits than its factorization.

31312315032032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977154658 (or 8977154650 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 31312315032032 its reverse (23023051321313), we get a palindrome (54335366353345).

The spelling of 31312315032032 in words is "thirty-one trillion, three hundred twelve billion, three hundred fifteen million, thirty-two thousand, thirty-two".