115040439091 has 2 divisors, whose sum is σ = 115040439092. Its totient is φ = 115040439090.

The previous prime is 115040439089. The next prime is 115040439103. The reversal of 115040439091 is 190934040511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115040439091 - 2¹ = 115040439089 is a prime.

Together with 115040439089, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 115040439091.

It is not a weakly prime, because it can be changed into another prime (115040439191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57520219545 + 57520219546.

It is an arithmetic number, because the mean of its divisors is an integer number (57520219546).

Almost surely, 2^115040439091 is an apocalyptic number.

115040439091 is a deficient number, since it is larger than the sum of its proper divisors (1).

115040439091 is an equidigital number, since it uses as much as digits as its factorization.

115040439091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 115040439091 in words is "one hundred fifteen billion, forty million, four hundred thirty-nine thousand, ninety-one".