115105111113 has 32 divisors (see below), whose sum is σ = 167281666560. Its totient is φ = 70107310080.

The previous prime is 115105111103. The next prime is 115105111123. The reversal of 115105111113 is 311111501511.

It is an interprime number because it is at equal distance from previous prime (115105111103) and next prime (115105111123).

It is not a de Polignac number, because 115105111113 - 2⁶ = 115105111049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115105111113.

It is not an unprimeable number, because it can be changed into a prime (115105111103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 742533 + ... + 884061.

It is an arithmetic number, because the mean of its divisors is an integer number (5227552080).

Almost surely, 2^115105111113 is an apocalyptic number.

It is an amenable number.

115105111113 is a deficient number, since it is larger than the sum of its proper divisors (52176555447).

115105111113 is a wasteful number, since it uses less digits than its factorization.

115105111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142017.

The product of its (nonzero) digits is 75, while the sum is 21.

Adding to 115105111113 its reverse (311111501511), we get a palindrome (426216612624).

The spelling of 115105111113 in words is "one hundred fifteen billion, one hundred five million, one hundred eleven thousand, one hundred thirteen".