210202020131 has 2 divisors, whose sum is σ = 210202020132. Its totient is φ = 210202020130.

The previous prime is 210202020113. The next prime is 210202020163. The reversal of 210202020131 is 131020202012.

It is a happy number.

Together with previous prime (210202020113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210202020131 is a prime.

It is a super-2 number, since 2×210202020131² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (210202020191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105101010065 + 105101010066.

It is an arithmetic number, because the mean of its divisors is an integer number (105101010066).

Almost surely, 2^210202020131 is an apocalyptic number.

210202020131 is a deficient number, since it is larger than the sum of its proper divisors (1).

210202020131 is an equidigital number, since it uses as much as digits as its factorization.

210202020131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 210202020131 its reverse (131020202012), we get a palindrome (341222222143).

The spelling of 210202020131 in words is "two hundred ten billion, two hundred two million, twenty thousand, one hundred thirty-one".