11213521115 has 16 divisors (see below), whose sum is σ = 14010415776. Its totient is φ = 8608531200.

The previous prime is 11213521087. The next prime is 11213521139. The reversal of 11213521115 is 51112531211.

It is not a de Polignac number, because 11213521115 - 2²⁰ = 11212472539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435857 + ... + 460866.

It is an arithmetic number, because the mean of its divisors is an integer number (875650986).

Almost surely, 2^11213521115 is an apocalyptic number.

11213521115 is a deficient number, since it is larger than the sum of its proper divisors (2796894661).

11213521115 is an equidigital number, since it uses as much as digits as its factorization.

11213521115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896830.

The product of its digits is 300, while the sum is 23.

The spelling of 11213521115 in words is "eleven billion, two hundred thirteen million, five hundred twenty-one thousand, one hundred fifteen".