11500130331 has 8 divisors (see below), whose sum is σ = 17037230160. Its totient is φ = 7666753536.

The previous prime is 11500130329. The next prime is 11500130363. The reversal of 11500130331 is 13303100511.

11500130331 is a `hidden beast` number, since 1 + 1 + 500 + 130 + 3 + 31 = 666.

It is not a de Polignac number, because 11500130331 - 2¹ = 11500130329 is a prime.

It is a super-2 number, since 2×11500130331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11500130311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212965350 + ... + 212965403.

It is an arithmetic number, because the mean of its divisors is an integer number (2129653770).

Almost surely, 2^11500130331 is an apocalyptic number.

11500130331 is a deficient number, since it is larger than the sum of its proper divisors (5537099829).

11500130331 is an equidigital number, since it uses as much as digits as its factorization.

11500130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425930762 (or 425930756 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

Adding to 11500130331 its reverse (13303100511), we get a palindrome (24803230842).

The spelling of 11500130331 in words is "eleven billion, five hundred million, one hundred thirty thousand, three hundred thirty-one".