115723911 has 4 divisors (see below), whose sum is σ = 154298552. Its totient is φ = 77149272.

The previous prime is 115723897. The next prime is 115723921. The reversal of 115723911 is 119327511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119327511 = 3 ⋅39775837.

It is not a de Polignac number, because 115723911 - 2⁶ = 115723847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115723921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19287316 + ... + 19287321.

It is an arithmetic number, because the mean of its divisors is an integer number (38574638).

Almost surely, 2^115723911 is an apocalyptic number.

115723911 is a deficient number, since it is larger than the sum of its proper divisors (38574641).

115723911 is an equidigital number, since it uses as much as digits as its factorization.

115723911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38574640.

The product of its digits is 1890, while the sum is 30.

The square root of 115723911 is about 10757.5048686952. The cubic root of 115723911 is about 487.3126675361.

The spelling of 115723911 in words is "one hundred fifteen million, seven hundred twenty-three thousand, nine hundred eleven".