113131133303231 has 2 divisors, whose sum is σ = 113131133303232. Its totient is φ = 113131133303230.

The previous prime is 113131133303213. The next prime is 113131133303273. The reversal of 113131133303231 is 132303331131311.

Together with previous prime (113131133303213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113131133303231 is a prime.

It is a super-2 number, since 2×113131133303231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113131133303194 and 113131133303203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113131133303731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56565566651615 + 56565566651616.

It is an arithmetic number, because the mean of its divisors is an integer number (56565566651616).

Almost surely, 2^{113131133303231} is an apocalyptic number.

113131133303231 is a deficient number, since it is larger than the sum of its proper divisors (1).

113131133303231 is an equidigital number, since it uses as much as digits as its factorization.

113131133303231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 29.

Adding to 113131133303231 its reverse (132303331131311), we get a palindrome (245434464434542).

The spelling of 113131133303231 in words is "one hundred thirteen trillion, one hundred thirty-one billion, one hundred thirty-three million, three hundred three thousand, two hundred thirty-one".