31120102232 has 16 divisors (see below), whose sum is σ = 58687478640. Its totient is φ = 15470107936.

The previous prime is 31120102187. The next prime is 31120102241. The reversal of 31120102232 is 23220102113.

It is a self number, because there is not a number n which added to its sum of digits gives 31120102232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11241428 + ... + 11244195.

It is an arithmetic number, because the mean of its divisors is an integer number (3667967415).

Almost surely, 2^31120102232 is an apocalyptic number.

It is an amenable number.

31120102232 is a deficient number, since it is larger than the sum of its proper divisors (27567376408).

31120102232 is a wasteful number, since it uses less digits than its factorization.

31120102232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22485802 (or 22485798 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31120102232 its reverse (23220102113), we get a palindrome (54340204345).

The spelling of 31120102232 in words is "thirty-one billion, one hundred twenty million, one hundred two thousand, two hundred thirty-two".