11386552331 has 12 divisors (see below), whose sum is σ = 14449725720. Its totient is φ = 8872637760.

The previous prime is 11386552321. The next prime is 11386552363. The reversal of 11386552331 is 13325568311.

It is a de Polignac number, because none of the positive numbers 2^k-11386552331 is a prime.

It is a super-2 number, since 2×11386552331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11386552301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10562126 + ... + 10563203.

It is an arithmetic number, because the mean of its divisors is an integer number (1204143810).

Almost surely, 2^11386552331 is an apocalyptic number.

11386552331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11386552331 is a deficient number, since it is larger than the sum of its proper divisors (3063173389).

11386552331 is a wasteful number, since it uses less digits than its factorization.

11386552331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125354 (or 21125347 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The spelling of 11386552331 in words is "eleven billion, three hundred eighty-six million, five hundred fifty-two thousand, three hundred thirty-one".