11552413131 has 32 divisors (see below), whose sum is σ = 19588920320. Its totient is φ = 6591497472.

The previous prime is 11552413123. The next prime is 11552413133. The reversal of 11552413131 is 13131425511.

11552413131 is a `hidden beast` number, since 1 + 1 + 5 + 524 + 1 + 3 + 131 = 666.

It is not a de Polignac number, because 11552413131 - 2³ = 11552413123 is a prime.

It is a super-2 number, since 2×11552413131² (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 Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11552413095 and 11552413104.

It is not an unprimeable number, because it can be changed into a prime (11552413133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81786 + ... + 172608.

It is an arithmetic number, because the mean of its divisors is an integer number (612153760).

Almost surely, 2^11552413131 is an apocalyptic number.

11552413131 is a deficient number, since it is larger than the sum of its proper divisors (8036507189).

11552413131 is an equidigital number, since it uses as much as digits as its factorization.

11552413131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91512 (or 91506 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

Adding to 11552413131 its reverse (13131425511), we get a palindrome (24683838642).

The spelling of 11552413131 in words is "eleven billion, five hundred fifty-two million, four hundred thirteen thousand, one hundred thirty-one".