202131223051 has 2 divisors, whose sum is σ = 202131223052. Its totient is φ = 202131223050.

The previous prime is 202131223009. The next prime is 202131223061. The reversal of 202131223051 is 150322131202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202131223051 - 2¹⁷ = 202131091979 is a prime.

It is a super-2 number, since 2×202131223051² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202131223001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101065611525 + 101065611526.

It is an arithmetic number, because the mean of its divisors is an integer number (101065611526).

Almost surely, 2^202131223051 is an apocalyptic number.

202131223051 is a deficient number, since it is larger than the sum of its proper divisors (1).

202131223051 is an equidigital number, since it uses as much as digits as its factorization.

202131223051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 202131223051 its reverse (150322131202), we get a palindrome (352453354253).

The spelling of 202131223051 in words is "two hundred two billion, one hundred thirty-one million, two hundred twenty-three thousand, fifty-one".