31112111032 has 32 divisors (see below), whose sum is σ = 61523049600. Its totient is φ = 14709099744.

The previous prime is 31112111029. The next prime is 31112111047. The reversal of 31112111032 is 23011121113.

It is a happy number.

It is a super-2 number, since 2×31112111032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31112110997 and 31112111015.

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, 116188 + ... + 275179.

It is an arithmetic number, because the mean of its divisors is an integer number (1922595300).

Almost surely, 2^31112111032 is an apocalyptic number.

It is an amenable number.

31112111032 is a deficient number, since it is larger than the sum of its proper divisors (30410938568).

31112111032 is a wasteful number, since it uses less digits than its factorization.

31112111032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391915 (or 391911 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 31112111032 its reverse (23011121113), we get a palindrome (54123232145).

The spelling of 31112111032 in words is "thirty-one billion, one hundred twelve million, one hundred eleven thousand, thirty-two".