31310020023000 has 64 divisors (see below), whose sum is σ = 97687262481120. Its totient is φ = 8349338672000.

The previous prime is 31310020022923. The next prime is 31310020023001. The reversal of 31310020023000 is 32002001313.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310020023001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5218333671 + ... + 5218339670.

Almost surely, 2^{31310020023000} is an apocalyptic number.

31310020023000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31310020023000 is an abundant number, since it is smaller than the sum of its proper divisors (66377242458120).

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

31310020023000 is a wasteful number, since it uses less digits than its factorization.

31310020023000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10436673365 (or 10436673351 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31310020023000 its reverse (32002001313), we get a palindrome (31342022024313).

The spelling of 31310020023000 in words is "thirty-one trillion, three hundred ten billion, twenty million, twenty-three thousand".