202400213131 has 4 divisors (see below), whose sum is σ = 202436892000. Its totient is φ = 202363534264.

The previous prime is 202400213129. The next prime is 202400213149. The reversal of 202400213131 is 131312004202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202400213131 - 2¹ = 202400213129 is a prime.

It is a super-2 number, since 2×202400213131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202400213099 and 202400213108.

It is not an unprimeable number, because it can be changed into a prime (202400213161) 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 3 ways as a sum of consecutive naturals, for example, 18331156 + ... + 18342193.

It is an arithmetic number, because the mean of its divisors is an integer number (50609223000).

Almost surely, 2^202400213131 is an apocalyptic number.

202400213131 is a deficient number, since it is larger than the sum of its proper divisors (36678869).

202400213131 is an equidigital number, since it uses as much as digits as its factorization.

202400213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36678868.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202400213131 its reverse (131312004202), we get a palindrome (333712217333).

The spelling of 202400213131 in words is "two hundred two billion, four hundred million, two hundred thirteen thousand, one hundred thirty-one".