115123433509 has 12 divisors (see below), whose sum is σ = 139764289504. Its totient is φ = 92872684224.

The previous prime is 115123433507. The next prime is 115123433519. The reversal of 115123433509 is 905334321511.

It is not a de Polignac number, because 115123433509 - 2¹ = 115123433507 is a prime.

It is a super-2 number, since 2×115123433509² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115123433507) 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 11 ways as a sum of consecutive naturals, for example, 28451619 + ... + 28455664.

Almost surely, 2^115123433509 is an apocalyptic number.

It is an amenable number.

115123433509 is a deficient number, since it is larger than the sum of its proper divisors (24640855995).

115123433509 is an equidigital number, since it uses as much as digits as its factorization.

115123433509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56907324 (or 56907307 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 115123433509 in words is "one hundred fifteen billion, one hundred twenty-three million, four hundred thirty-three thousand, five hundred nine".