31210041000020 has 24 divisors (see below), whose sum is σ = 65546746927200. Its totient is φ = 12482938147232.

The previous prime is 31210041000013. The next prime is 31210041000071. The reversal of 31210041000020 is 2000014001213.

It is a junction number, because it is equal to n+sod(n) for n = 31210040999959 and 31210041000004.

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, 67153430 + ... + 67616589.

It is an arithmetic number, because the mean of its divisors is an integer number (2731114455300).

Almost surely, 2^{31210041000020} is an apocalyptic number.

It is an amenable number.

31210041000020 is an abundant number, since it is smaller than the sum of its proper divisors (34336705927180).

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

31210041000020 is a wasteful number, since it uses less digits than its factorization.

31210041000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134781607 (or 134781605 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31210041000020 its reverse (2000014001213), we get a palindrome (33210055001233).

The spelling of 31210041000020 in words is "thirty-one trillion, two hundred ten billion, forty-one million, twenty", and thus it is an aban number.