115371315511 has 4 divisors (see below), whose sum is σ = 117093275512. Its totient is φ = 113649355512.

The previous prime is 115371315487. The next prime is 115371315547. The reversal of 115371315511 is 115513173511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115513173511 = 2543 ⋅45423977.

It is a cyclic number.

It is not a de Polignac number, because 115371315511 - 2¹⁹ = 115370791223 is a prime.

It is a super-3 number, since 3×115371315511³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115371315811) 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, 860979900 + ... + 860980033.

It is an arithmetic number, because the mean of its divisors is an integer number (29273318878).

Almost surely, 2^115371315511 is an apocalyptic number.

115371315511 is a deficient number, since it is larger than the sum of its proper divisors (1721960001).

115371315511 is an equidigital number, since it uses as much as digits as its factorization.

115371315511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721960000.

The product of its digits is 7875, while the sum is 34.

The spelling of 115371315511 in words is "one hundred fifteen billion, three hundred seventy-one million, three hundred fifteen thousand, five hundred eleven".