200131031321 has 16 divisors (see below), whose sum is σ = 218512602000. Its totient is φ = 182176957440.

The previous prime is 200131031311. The next prime is 200131031327. The reversal of 200131031321 is 123130131002.

200131031321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5066592400 + 195064438921 = 71180^2 + 441661^2 .

It is a cyclic number.

It is not a de Polignac number, because 200131031321 - 2⁶ = 200131031257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200131031321.

It is not an unprimeable number, because it can be changed into a prime (200131031327) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8074055 + ... + 8098803.

It is an arithmetic number, because the mean of its divisors is an integer number (13657037625).

Almost surely, 2^200131031321 is an apocalyptic number.

It is an amenable number.

200131031321 is a deficient number, since it is larger than the sum of its proper divisors (18381570679).

200131031321 is a wasteful number, since it uses less digits than its factorization.

200131031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33356.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 200131031321 its reverse (123130131002), we get a palindrome (323261162323).

The spelling of 200131031321 in words is "two hundred billion, one hundred thirty-one million, thirty-one thousand, three hundred twenty-one".