31312233032 has 16 divisors (see below), whose sum is σ = 59172725760. Its totient is φ = 15532839504.

The previous prime is 31312233013. The next prime is 31312233047. The reversal of 31312233032 is 23033221313.

It is a junction number, because it is equal to n+sod(n) for n = 31312232989 and 31312233007.

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, 15408548 + ... + 15410579.

It is an arithmetic number, because the mean of its divisors is an integer number (3698295360).

Almost surely, 2^31312233032 is an apocalyptic number.

It is an amenable number.

31312233032 is a deficient number, since it is larger than the sum of its proper divisors (27860492728).

31312233032 is a wasteful number, since it uses less digits than its factorization.

31312233032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30819260 (or 30819256 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31312233032 its reverse (23033221313), we get a palindrome (54345454345).

The spelling of 31312233032 in words is "thirty-one billion, three hundred twelve million, two hundred thirty-three thousand, thirty-two".