2021320320131 has 8 divisors (see below), whose sum is σ = 2319994875744. Its totient is φ = 1725124392000.

The previous prime is 2021320320043. The next prime is 2021320320139. The reversal of 2021320320131 is 1310230231202.

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 2021320320131 - 2²⁶ = 2021253211267 is a prime.

It is a super-2 number, since 2×2021320320131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021320320139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619655120 + ... + 619658381.

It is an arithmetic number, because the mean of its divisors is an integer number (289999359468).

Almost surely, 2^{2021320320131} is an apocalyptic number.

2021320320131 is a deficient number, since it is larger than the sum of its proper divisors (298674555613).

2021320320131 is a wasteful number, since it uses less digits than its factorization.

2021320320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239313741.

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

Adding to 2021320320131 its reverse (1310230231202), we get a palindrome (3331550551333).

The spelling of 2021320320131 in words is "two trillion, twenty-one billion, three hundred twenty million, three hundred twenty thousand, one hundred thirty-one".