11131407513 has 12 divisors (see below), whose sum is σ = 16079757460. Its totient is φ = 7420450176.

The previous prime is 11131407499. The next prime is 11131407523. The reversal of 11131407513 is 31570413111.

11131407513 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 140 + 7 + 513 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2814514704 + 8316892809 = 53052^2 + 91197^2 .

It is not a de Polignac number, because 11131407513 - 2⁶ = 11131407449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11131407523) 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, 151533 + ... + 212661.

Almost surely, 2^11131407513 is an apocalyptic number.

It is an amenable number.

11131407513 is a deficient number, since it is larger than the sum of its proper divisors (4948349947).

11131407513 is a wasteful number, since it uses less digits than its factorization.

11131407513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81368 (or 81365 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The spelling of 11131407513 in words is "eleven billion, one hundred thirty-one million, four hundred seven thousand, five hundred thirteen".