115711972199 has 4 divisors (see below), whose sum is σ = 120742927536. Its totient is φ = 110681016864.

The previous prime is 115711972193. The next prime is 115711972231. The reversal of 115711972199 is 991279117511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115711972199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115711972199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115711972193) 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, 2515477634 + ... + 2515477679.

It is an arithmetic number, because the mean of its divisors is an integer number (30185731884).

Almost surely, 2^115711972199 is an apocalyptic number.

115711972199 is a deficient number, since it is larger than the sum of its proper divisors (5030955337).

115711972199 is an equidigital number, since it uses as much as digits as its factorization.

115711972199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030955336.

The product of its digits is 357210, while the sum is 53.

The spelling of 115711972199 in words is "one hundred fifteen billion, seven hundred eleven million, nine hundred seventy-two thousand, one hundred ninety-nine".