12011515513 has 16 divisors (see below), whose sum is σ = 12972234240. Its totient is φ = 11084515200.

The previous prime is 12011515511. The next prime is 12011515541. The reversal of 12011515513 is 31551511021.

It is a cyclic number.

It is not a de Polignac number, because 12011515513 - 2¹ = 12011515511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011515511) 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, 503256 + ... + 526582.

It is an arithmetic number, because the mean of its divisors is an integer number (810764640).

Almost surely, 2^12011515513 is an apocalyptic number.

It is an amenable number.

12011515513 is a deficient number, since it is larger than the sum of its proper divisors (960718727).

12011515513 is a wasteful number, since it uses less digits than its factorization.

12011515513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24048.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 12011515513 in words is "twelve billion, eleven million, five hundred fifteen thousand, five hundred thirteen".