202111320131 has 6 divisors (see below), whose sum is σ = 235109086740. Its totient is φ = 173238274356.

The previous prime is 202111320109. The next prime is 202111320161. The reversal of 202111320131 is 131023111202.

It is not a de Polignac number, because 202111320131 - 2⁶ = 202111320067 is a prime.

It is a super-2 number, since 2×202111320131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202111320161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2062360361 + ... + 2062360458.

It is an arithmetic number, because the mean of its divisors is an integer number (39184847790).

Almost surely, 2^202111320131 is an apocalyptic number.

202111320131 is a deficient number, since it is larger than the sum of its proper divisors (32997766609).

202111320131 is an equidigital number, since it uses as much as digits as its factorization.

202111320131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124720833 (or 4124720826 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 202111320131 its reverse (131023111202), we get a palindrome (333134431333).

The spelling of 202111320131 in words is "two hundred two billion, one hundred eleven million, three hundred twenty thousand, one hundred thirty-one".