11525132331 has 64 divisors (see below), whose sum is σ = 18039542400. Its totient is φ = 7263779328.

The previous prime is 11525132327. The next prime is 11525132357. The reversal of 11525132331 is 13323152511.

11525132331 is a `hidden beast` number, since 1 + 1 + 525 + 132 + 3 + 3 + 1 = 666.

It is not a de Polignac number, because 11525132331 - 2² = 11525132327 is a prime.

It is a super-2 number, since 2×11525132331² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11525132295 and 11525132304.

It is not an unprimeable number, because it can be changed into a prime (11525132831) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5770225 + ... + 5772221.

It is an arithmetic number, because the mean of its divisors is an integer number (281867850).

Almost surely, 2^11525132331 is an apocalyptic number.

11525132331 is a deficient number, since it is larger than the sum of its proper divisors (6514410069).

11525132331 is a wasteful number, since it uses less digits than its factorization.

11525132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205 (or 2199 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

Adding to 11525132331 its reverse (13323152511), we get a palindrome (24848284842).

The spelling of 11525132331 in words is "eleven billion, five hundred twenty-five million, one hundred thirty-two thousand, three hundred thirty-one".