202120303231 has 32 divisors (see below), whose sum is σ = 256866743808. Its totient is φ = 154453703040.

The previous prime is 202120303199. The next prime is 202120303249. The reversal of 202120303231 is 132303021202.

It is not a de Polignac number, because 202120303231 - 2⁵ = 202120303199 is a prime.

It is a super-2 number, since 2×202120303231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202120303199 and 202120303208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120303331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9935236 + ... + 9955558.

It is an arithmetic number, because the mean of its divisors is an integer number (8027085744).

Almost surely, 2^202120303231 is an apocalyptic number.

202120303231 is a deficient number, since it is larger than the sum of its proper divisors (54746440577).

202120303231 is a wasteful number, since it uses less digits than its factorization.

202120303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22831.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 202120303231 its reverse (132303021202), we get a palindrome (334423324433).

It can be divided in two parts, 20212030 and 3231, that added together give a triangular number (20215261 = T₆₃₅₈).

The spelling of 202120303231 in words is "two hundred two billion, one hundred twenty million, three hundred three thousand, two hundred thirty-one".