11571660131 has 8 divisors (see below), whose sum is σ = 11593076400. Its totient is φ = 11550263040.

The previous prime is 11571660119. The next prime is 11571660151. The reversal of 11571660131 is 13106617511.

11571660131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11571660131 - 2²² = 11567465827 is a prime.

It is a super-2 number, since 2×11571660131² (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 (11571660151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744940 + ... + 1751558.

It is an arithmetic number, because the mean of its divisors is an integer number (1449134550).

Almost surely, 2^11571660131 is an apocalyptic number.

11571660131 is a deficient number, since it is larger than the sum of its proper divisors (21416269).

11571660131 is an equidigital number, since it uses as much as digits as its factorization.

11571660131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9589.

The product of its (nonzero) digits is 3780, while the sum is 32.

The spelling of 11571660131 in words is "eleven billion, five hundred seventy-one million, six hundred sixty thousand, one hundred thirty-one".