31122103032 has 48 divisors (see below), whose sum is σ = 85076798040. Its totient is φ = 10277078208.

The previous prime is 31122103021. The next prime is 31122103063. The reversal of 31122103032 is 23030122113.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31122102996 and 31122103014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2012163 + ... + 2027570.

Almost surely, 2^31122103032 is an apocalyptic number.

It is an amenable number.

31122103032 is an abundant number, since it is smaller than the sum of its proper divisors (53954695008).

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

31122103032 is a wasteful number, since it uses less digits than its factorization.

31122103032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039852 (or 4039845 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31122103032 its reverse (23030122113), we get a palindrome (54152225145).

The spelling of 31122103032 in words is "thirty-one billion, one hundred twenty-two million, one hundred three thousand, thirty-two".