115312111311 has 16 divisors (see below), whose sum is σ = 160442231040. Its totient is φ = 73528699200.

The previous prime is 115312111309. The next prime is 115312111333. The reversal of 115312111311 is 113111213511.

It is not a de Polignac number, because 115312111311 - 2¹ = 115312111309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115312111381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311035 + ... + 2360403.

It is an arithmetic number, because the mean of its divisors is an integer number (10027639440).

Almost surely, 2^115312111311 is an apocalyptic number.

115312111311 is a deficient number, since it is larger than the sum of its proper divisors (45130119729).

115312111311 is a wasteful number, since it uses less digits than its factorization.

115312111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83246.

The product of its digits is 90, while the sum is 21.

Adding to 115312111311 its reverse (113111213511), we get a palindrome (228423324822).

The spelling of 115312111311 in words is "one hundred fifteen billion, three hundred twelve million, one hundred eleven thousand, three hundred eleven".