31033113011020 has 12 divisors (see below), whose sum is σ = 65169537323184. Its totient is φ = 12413245204400.

The previous prime is 31033113010979. The next prime is 31033113011023. The reversal of 31033113011020 is 2011031133013.

It is not an unprimeable number, because it can be changed into a prime (31033113011023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775827825256 + ... + 775827825295.

It is an arithmetic number, because the mean of its divisors is an integer number (5430794776932).

Almost surely, 2^{31033113011020} is an apocalyptic number.

It is an amenable number.

31033113011020 is an abundant number, since it is smaller than the sum of its proper divisors (34136424312164).

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

31033113011020 is a wasteful number, since it uses less digits than its factorization.

31033113011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551655650560 (or 1551655650558 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31033113011020 its reverse (2011031133013), we get a palindrome (33044144144033).

The spelling of 31033113011020 in words is "thirty-one trillion, thirty-three billion, one hundred thirteen million, eleven thousand, twenty".