31023003123012 has 24 divisors (see below), whose sum is σ = 73259139907296. Its totient is φ = 10216410666688.

The previous prime is 31023003122989. The next prime is 31023003123019. The reversal of 31023003123012 is 21032130032013.

It is a self number, because there is not a number n which added to its sum of digits gives 31023003123012.

It is not an unprimeable number, because it can be changed into a prime (31023003123019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15573795753 + ... + 15573797744.

It is an arithmetic number, because the mean of its divisors is an integer number (3052464162804).

Almost surely, 2^{31023003123012} is an apocalyptic number.

It is an amenable number.

31023003123012 is an abundant number, since it is smaller than the sum of its proper divisors (42236136784284).

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

31023003123012 is a wasteful number, since it uses less digits than its factorization.

31023003123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31147593587 (or 31147593585 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31023003123012 its reverse (21032130032013), we get a palindrome (52055133155025).

The spelling of 31023003123012 in words is "thirty-one trillion, twenty-three billion, three million, one hundred twenty-three thousand, twelve".