11520660201 has 16 divisors (see below), whose sum is σ = 15487642368. Its totient is φ = 7617131600.

The previous prime is 11520660197. The next prime is 11520660223. The reversal of 11520660201 is 10206602511.

It is a cyclic number.

It is not a de Polignac number, because 11520660201 - 2² = 11520660197 is a prime.

It is a super-2 number, since 2×11520660201² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11520660101) 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, 703630 + ... + 719816.

It is an arithmetic number, because the mean of its divisors is an integer number (967977648).

Almost surely, 2^11520660201 is an apocalyptic number.

It is an amenable number.

11520660201 is a deficient number, since it is larger than the sum of its proper divisors (3966982167).

11520660201 is a wasteful number, since it uses less digits than its factorization.

11520660201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18132.

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 11520660201 in words is "eleven billion, five hundred twenty million, six hundred sixty thousand, two hundred one".