113164505231 has 2 divisors, whose sum is σ = 113164505232. Its totient is φ = 113164505230.

The previous prime is 113164505213. The next prime is 113164505273. The reversal of 113164505231 is 132505461311.

Together with previous prime (113164505213) 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 not a de Polignac number, because 113164505231 - 2¹⁴ = 113164488847 is a prime.

It is a super-2 number, since 2×113164505231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113164505281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56582252615 + 56582252616.

It is an arithmetic number, because the mean of its divisors is an integer number (56582252616).

Almost surely, 2^113164505231 is an apocalyptic number.

113164505231 is a deficient number, since it is larger than the sum of its proper divisors (1).

113164505231 is an equidigital number, since it uses as much as digits as its factorization.

113164505231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 113164505231 its reverse (132505461311), we get a palindrome (245669966542).

The spelling of 113164505231 in words is "one hundred thirteen billion, one hundred sixty-four million, five hundred five thousand, two hundred thirty-one".