1031323200020 has 24 divisors (see below), whose sum is σ = 2168110060200. Its totient is φ = 412085215232.

The previous prime is 1031323200007. The next prime is 1031323200053. The reversal of 1031323200020 is 200023231301.

It can be written as a sum of positive squares in 4 ways, for example, as 26685836164 + 1004637363856 = 163358^2 + 1002316^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27735005 + ... + 27772164.

It is an arithmetic number, because the mean of its divisors is an integer number (90337919175).

Almost surely, 2^{1031323200020} is an apocalyptic number.

1031323200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031323200020 is an abundant number, since it is smaller than the sum of its proper divisors (1136786860180).

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

1031323200020 is a wasteful number, since it uses less digits than its factorization.

1031323200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55508107 (or 55508105 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 1031323200020 its reverse (200023231301), we get a palindrome (1231346431321).

The spelling of 1031323200020 in words is "one trillion, thirty-one billion, three hundred twenty-three million, two hundred thousand, twenty".