11371552731 has 96 divisors (see below), whose sum is σ = 21245193216. Its totient is φ = 5689440000.

The previous prime is 11371552693. The next prime is 11371552793. The reversal of 11371552731 is 13725517311.

11371552731 is a `hidden beast` number, since 1 + 1 + 3 + 71 + 552 + 7 + 31 = 666.

It is not a de Polignac number, because 11371552731 - 2⁹ = 11371552219 is a prime.

It is a super-2 number, since 2×11371552731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11371557731) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2587546 + ... + 2591936.

It is an arithmetic number, because the mean of its divisors is an integer number (221304096).

Almost surely, 2^11371552731 is an apocalyptic number.

11371552731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11371552731 is a deficient number, since it is larger than the sum of its proper divisors (9873640485).

11371552731 is a wasteful number, since it uses less digits than its factorization.

11371552731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553 (or 4550 counting only the distinct ones).

The product of its digits is 22050, while the sum is 36.

The spelling of 11371552731 in words is "eleven billion, three hundred seventy-one million, five hundred fifty-two thousand, seven hundred thirty-one".