113203221131 has 72 divisors (see below), whose sum is σ = 159201000000. Its totient is φ = 79689899520.

The previous prime is 113203221113. The next prime is 113203221137. The reversal of 113203221131 is 131122302311.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-113203221131 is a prime.

It is a super-2 number, since 2×113203221131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113203221137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3606995 + ... + 3638243.

It is an arithmetic number, because the mean of its divisors is an integer number (2211125000).

Almost surely, 2^113203221131 is an apocalyptic number.

113203221131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113203221131 is a deficient number, since it is larger than the sum of its proper divisors (45997778869).

113203221131 is a wasteful number, since it uses less digits than its factorization.

113203221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31345 (or 31327 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 113203221131 its reverse (131122302311), we get a palindrome (244325523442).

The spelling of 113203221131 in words is "one hundred thirteen billion, two hundred three million, two hundred twenty-one thousand, one hundred thirty-one".