31330033113020 has 24 divisors (see below), whose sum is σ = 68653637779104. Its totient is φ = 11987143103936.

The previous prime is 31330033112921. The next prime is 31330033113031. The reversal of 31330033113020 is 2031133003313.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34054383359 + ... + 34054384278.

It is an arithmetic number, because the mean of its divisors is an integer number (2860568240796).

Almost surely, 2^{31330033113020} is an apocalyptic number.

It is an amenable number.

31330033113020 is an abundant number, since it is smaller than the sum of its proper divisors (37323604666084).

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

31330033113020 is a wasteful number, since it uses less digits than its factorization.

31330033113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68108767669 (or 68108767667 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 31330033113020 its reverse (2031133003313), we get a palindrome (33361166116333).

The spelling of 31330033113020 in words is "thirty-one trillion, three hundred thirty billion, thirty-three million, one hundred thirteen thousand, twenty".