202120031230331 has 16 divisors (see below), whose sum is σ = 212497082726400. Its totient is φ = 191877736696800.

The previous prime is 202120031230321. The next prime is 202120031230339. The reversal of 202120031230331 is 133032130021202.

It is a cyclic number.

It is not a de Polignac number, because 202120031230331 - 2¹⁸ = 202120030968187 is a prime.

It is a super-2 number, since 2×202120031230331² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 202120031230297 and 202120031230306.

It is not an unprimeable number, because it can be changed into a prime (202120031230339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22550756 + ... + 30212193.

It is an arithmetic number, because the mean of its divisors is an integer number (13281067670400).

Almost surely, 2^{202120031230331} is an apocalyptic number.

202120031230331 is a deficient number, since it is larger than the sum of its proper divisors (10377051496069).

202120031230331 is a wasteful number, since it uses less digits than its factorization.

202120031230331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52764226.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 202120031230331 its reverse (133032130021202), we get a palindrome (335152161251533).

The spelling of 202120031230331 in words is "two hundred two trillion, one hundred twenty billion, thirty-one million, two hundred thirty thousand, three hundred thirty-one".