31232030112020 has 12 divisors (see below), whose sum is σ = 65587263235284. Its totient is φ = 12492812044800.

The previous prime is 31232030111987. The next prime is 31232030112061. The reversal of 31232030112020 is 2021103023213.

It can be written as a sum of positive squares in 2 ways, for example, as 17910128705296 + 13321901406724 = 4232036^2 + 3649918^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1561601505601 = 31232030112020 / (3 + 1 + 2 + 3 + 2 + 0 + 3 + 0 + 1 + 1 + 2 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 31232030111983 and 31232030112001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780800752781 + ... + 780800752820.

It is an arithmetic number, because the mean of its divisors is an integer number (5465605269607).

Almost surely, 2^{31232030112020} is an apocalyptic number.

It is an amenable number.

31232030112020 is an abundant number, since it is smaller than the sum of its proper divisors (34355233123264).

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

31232030112020 is a wasteful number, since it uses less digits than its factorization.

31232030112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561601505610 (or 1561601505608 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31232030112020 its reverse (2021103023213), we get a palindrome (33253133135233).

The spelling of 31232030112020 in words is "thirty-one trillion, two hundred thirty-two billion, thirty million, one hundred twelve thousand, twenty".