11513510541 has 48 divisors (see below), whose sum is σ = 18906072640. Its totient is φ = 6711862176.

The previous prime is 11513510539. The next prime is 11513510599. The reversal of 11513510541 is 14501531511.

11513510541 is a `hidden beast` number, since 1 + 1 + 513 + 5 + 105 + 41 = 666.

It is not a de Polignac number, because 11513510541 - 2¹ = 11513510539 is a prime.

It is a super-2 number, since 2×11513510541² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11513510521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 795330 + ... + 809676.

Almost surely, 2^11513510541 is an apocalyptic number.

It is an amenable number.

11513510541 is a deficient number, since it is larger than the sum of its proper divisors (7392562099).

11513510541 is a wasteful number, since it uses less digits than its factorization.

11513510541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14423 (or 14382 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The spelling of 11513510541 in words is "eleven billion, five hundred thirteen million, five hundred ten thousand, five hundred forty-one".