31312425200020 has 24 divisors (see below), whose sum is σ = 66548335006944. Its totient is φ = 12374066825376.

The previous prime is 31312425199987. The next prime is 31312425200039. The reversal of 31312425200020 is 2000252421313.

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, 9431451714 + ... + 9431455033.

It is an arithmetic number, because the mean of its divisors is an integer number (2772847291956).

Almost surely, 2^{31312425200020} is an apocalyptic number.

It is an amenable number.

31312425200020 is an abundant number, since it is smaller than the sum of its proper divisors (35235909806924).

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

31312425200020 is a wasteful number, since it uses less digits than its factorization.

31312425200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18862906839 (or 18862906837 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 31312425200020 its reverse (2000252421313), we get a palindrome (33312677621333).

The spelling of 31312425200020 in words is "thirty-one trillion, three hundred twelve billion, four hundred twenty-five million, two hundred thousand, twenty".