31233013102312 has 32 divisors (see below), whose sum is σ = 66931621560000. Its totient is φ = 13384829775744.

The previous prime is 31233013102301. The next prime is 31233013102367. The reversal of 31233013102312 is 21320131033213.

It is a super-2 number, since 2×31233013102312² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14555437 + ... + 16562812.

It is an arithmetic number, because the mean of its divisors is an integer number (2091613173750).

Almost surely, 2^{31233013102312} is an apocalyptic number.

It is an amenable number.

31233013102312 is an abundant number, since it is smaller than the sum of its proper divisors (35698608457688).

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

31233013102312 is a wasteful number, since it uses less digits than its factorization.

31233013102312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31136185 (or 31136181 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31233013102312 its reverse (21320131033213), we get a palindrome (52553144135525).

The spelling of 31233013102312 in words is "thirty-one trillion, two hundred thirty-three billion, thirteen million, one hundred two thousand, three hundred twelve".