202131302031021 has 8 divisors (see below), whose sum is σ = 294009166590624. Its totient is φ = 122503819412720.

The previous prime is 202131302031019. The next prime is 202131302031059. The reversal of 202131302031021 is 120130203131202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202131302031021 - 2¹ = 202131302031019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202131302031011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3062595485286 + ... + 3062595485351.

It is an arithmetic number, because the mean of its divisors is an integer number (36751145823828).

Almost surely, 2^{202131302031021} is an apocalyptic number.

It is an amenable number.

202131302031021 is a deficient number, since it is larger than the sum of its proper divisors (91877864559603).

202131302031021 is a wasteful number, since it uses less digits than its factorization.

202131302031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125190970651.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 202131302031021 its reverse (120130203131202), we get a palindrome (322261505162223).

The spelling of 202131302031021 in words is "two hundred two trillion, one hundred thirty-one billion, three hundred two million, thirty-one thousand, twenty-one".