113131402231 has 2 divisors, whose sum is σ = 113131402232. Its totient is φ = 113131402230.

The previous prime is 113131402207. The next prime is 113131402247. The reversal of 113131402231 is 132204131311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113131402231 - 2¹¹ = 113131400183 is a prime.

It is a super-2 number, since 2×113131402231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113131402271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56565701115 + 56565701116.

It is an arithmetic number, because the mean of its divisors is an integer number (56565701116).

Almost surely, 2^113131402231 is an apocalyptic number.

113131402231 is a deficient number, since it is larger than the sum of its proper divisors (1).

113131402231 is an equidigital number, since it uses as much as digits as its factorization.

113131402231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 113131402231 its reverse (132204131311), we get a palindrome (245335533542).

The spelling of 113131402231 in words is "one hundred thirteen billion, one hundred thirty-one million, four hundred two thousand, two hundred thirty-one".