115145313111 has 24 divisors (see below), whose sum is σ = 172534340160. Its totient is φ = 73943251200.

The previous prime is 115145313067. The next prime is 115145313133. The reversal of 115145313111 is 111313541511.

It is a happy number.

115145313111 is a `hidden beast` number, since 1 + 1 + 5 + 14 + 531 + 3 + 111 = 666.

It is not a de Polignac number, because 115145313111 - 2²³ = 115136924503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115145313211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1945830 + ... + 2004131.

It is an arithmetic number, because the mean of its divisors is an integer number (7188930840).

Almost surely, 2^115145313111 is an apocalyptic number.

115145313111 is a deficient number, since it is larger than the sum of its proper divisors (57389027049).

115145313111 is a wasteful number, since it uses less digits than its factorization.

115145313111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950087 (or 3950084 counting only the distinct ones).

The product of its digits is 900, while the sum is 27.

Adding to 115145313111 its reverse (111313541511), we get a palindrome (226458854622).

The spelling of 115145313111 in words is "one hundred fifteen billion, one hundred forty-five million, three hundred thirteen thousand, one hundred eleven".