115113431 has 4 divisors (see below), whose sum is σ = 115301832. Its totient is φ = 114925032.

The previous prime is 115113421. The next prime is 115113473. The reversal of 115113431 is 134311511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134311511 = 163 ⋅823997.

It is a cyclic number.

It is not a de Polignac number, because 115113431 - 2¹⁰ = 115112407 is a prime.

It is a super-2 number, since 2×115113431² = 26502203993183522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115113421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93281 + ... + 94506.

It is an arithmetic number, because the mean of its divisors is an integer number (28825458).

Almost surely, 2^115113431 is an apocalyptic number.

115113431 is a deficient number, since it is larger than the sum of its proper divisors (188401).

115113431 is an equidigital number, since it uses as much as digits as its factorization.

115113431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188400.

The product of its digits is 180, while the sum is 20.

The square root of 115113431 is about 10729.0927389039. The cubic root of 115113431 is about 486.4542471251.

Adding to 115113431 its reverse (134311511), we get a palindrome (249424942).

The spelling of 115113431 in words is "one hundred fifteen million, one hundred thirteen thousand, four hundred thirty-one".