115911101 has 4 divisors (see below), whose sum is σ = 118606752. Its totient is φ = 113215452.

The previous prime is 115911097. The next prime is 115911109. The reversal of 115911101 is 101119511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101119511 = 3637 ⋅27803.

It is a cyclic number.

It is not a de Polignac number, because 115911101 - 2² = 115911097 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 (115911109) 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, 1347761 + ... + 1347846.

It is an arithmetic number, because the mean of its divisors is an integer number (29651688).

Almost surely, 2^115911101 is an apocalyptic number.

It is an amenable number.

115911101 is a deficient number, since it is larger than the sum of its proper divisors (2695651).

115911101 is an equidigital number, since it uses as much as digits as its factorization.

115911101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695650.

The product of its (nonzero) digits is 45, while the sum is 20.

The square root of 115911101 is about 10766.2017907895. The cubic root of 115911101 is about 487.5752779654.

The spelling of 115911101 in words is "one hundred fifteen million, nine hundred eleven thousand, one hundred one".