31023011303312 has 80 divisors (see below), whose sum is σ = 69823635501312. Its totient is φ = 13076923599360.

The previous prime is 31023011303293. The next prime is 31023011303363. The reversal of 31023011303312 is 21330311032013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141059738 + ... + 141279494.

Almost surely, 2^{31023011303312} is an apocalyptic number.

It is an amenable number.

31023011303312 is an abundant number, since it is smaller than the sum of its proper divisors (38800624198000).

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

31023011303312 is a wasteful number, since it uses less digits than its factorization.

31023011303312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240496 (or 240490 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31023011303312 its reverse (21330311032013), we get a palindrome (52353322335325).

The spelling of 31023011303312 in words is "thirty-one trillion, twenty-three billion, eleven million, three hundred three thousand, three hundred twelve".