115373878123 has 24 divisors (see below), whose sum is σ = 134725260800. Its totient is φ = 96770104704.

The previous prime is 115373878099. The next prime is 115373878159. The reversal of 115373878123 is 321878373511.

It is not a de Polignac number, because 115373878123 - 2²¹ = 115371780971 is a prime.

It is a super-2 number, since 2×115373878123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115373878523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7053088 + ... + 7069426.

Almost surely, 2^115373878123 is an apocalyptic number.

115373878123 is a deficient number, since it is larger than the sum of its proper divisors (19351382677).

115373878123 is an equidigital number, since it uses as much as digits as its factorization.

115373878123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16651 (or 16538 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The spelling of 115373878123 in words is "one hundred fifteen billion, three hundred seventy-three million, eight hundred seventy-eight thousand, one hundred twenty-three".