113213022131 has 12 divisors (see below), whose sum is σ = 124865511456. Its totient is φ = 102569631120.

The previous prime is 113213022127. The next prime is 113213022137. The reversal of 113213022131 is 131220312311.

It is a happy number.

It is not a de Polignac number, because 113213022131 - 2² = 113213022127 is a prime.

It is a super-2 number, since 2×113213022131² (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 (113213022137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1561211 + ... + 1632116.

It is an arithmetic number, because the mean of its divisors is an integer number (10405459288).

Almost surely, 2^113213022131 is an apocalyptic number.

113213022131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113213022131 is a deficient number, since it is larger than the sum of its proper divisors (11652489325).

113213022131 is a wasteful number, since it uses less digits than its factorization.

113213022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193642 (or 3193631 counting only the distinct ones).

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

Adding to 113213022131 its reverse (131220312311), we get a palindrome (244433334442).

The spelling of 113213022131 in words is "one hundred thirteen billion, two hundred thirteen million, twenty-two thousand, one hundred thirty-one".