115112031 has 4 divisors (see below), whose sum is σ = 153482712. Its totient is φ = 76741352.

The previous prime is 115112029. The next prime is 115112057. The reversal of 115112031 is 130211511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115112031 - 2¹ = 115112029 is a prime.

It is a super-2 number, since 2×115112031² = 26501559361889922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115112031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115112731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19185336 + ... + 19185341.

It is an arithmetic number, because the mean of its divisors is an integer number (38370678).

Almost surely, 2^115112031 is an apocalyptic number.

115112031 is a deficient number, since it is larger than the sum of its proper divisors (38370681).

115112031 is an equidigital number, since it uses as much as digits as its factorization.

115112031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38370680.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 115112031 is about 10729.0274955375. The cubic root of 115112031 is about 486.4522750451.

Adding to 115112031 its reverse (130211511), we get a palindrome (245323542).

The spelling of 115112031 in words is "one hundred fifteen million, one hundred twelve thousand, thirty-one".