115121043 has 6 divisors (see below), whose sum is σ = 166285964. Its totient is φ = 76747356.

The previous prime is 115121029. The next prime is 115121047. The reversal of 115121043 is 340121511.

It is not a de Polignac number, because 115121043 - 2¹⁷ = 114989971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115121047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6395605 + ... + 6395622.

Almost surely, 2^115121043 is an apocalyptic number.

115121043 is a deficient number, since it is larger than the sum of its proper divisors (51164921).

115121043 is a wasteful number, since it uses less digits than its factorization.

115121043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791233 (or 12791230 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 115121043 is about 10729.4474694646. The cubic root of 115121043 is about 486.4649693263.

Adding to 115121043 its reverse (340121511), we get a palindrome (455242554).

The spelling of 115121043 in words is "one hundred fifteen million, one hundred twenty-one thousand, forty-three".