11160513721 has 16 divisors (see below), whose sum is σ = 14009932800. Its totient is φ = 8668641168.

The previous prime is 11160513703. The next prime is 11160513731. The reversal of 11160513721 is 12731506111.

It is not a de Polignac number, because 11160513721 - 2⁷ = 11160513593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11160513721.

It is not an unprimeable number, because it can be changed into a prime (11160513731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1821151 + ... + 1827268.

It is an arithmetic number, because the mean of its divisors is an integer number (875620800).

Almost surely, 2^11160513721 is an apocalyptic number.

It is an amenable number.

11160513721 is a deficient number, since it is larger than the sum of its proper divisors (2849419079).

11160513721 is a wasteful number, since it uses less digits than its factorization.

11160513721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648468.

The product of its (nonzero) digits is 1260, while the sum is 28.

The spelling of 11160513721 in words is "eleven billion, one hundred sixty million, five hundred thirteen thousand, seven hundred twenty-one".