11520961219 has 4 divisors (see below), whose sum is σ = 11521757520. Its totient is φ = 11520164920.

The previous prime is 11520961213. The next prime is 11520961259. The reversal of 11520961219 is 91216902511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11520961219 - 2¹⁹ = 11520436931 is a prime.

It is a super-2 number, since 2×11520961219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11520961213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376039 + ... + 405520.

It is an arithmetic number, because the mean of its divisors is an integer number (2880439380).

Almost surely, 2^11520961219 is an apocalyptic number.

11520961219 is a deficient number, since it is larger than the sum of its proper divisors (796301).

11520961219 is an equidigital number, since it uses as much as digits as its factorization.

11520961219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796300.

The product of its (nonzero) digits is 9720, while the sum is 37.

The spelling of 11520961219 in words is "eleven billion, five hundred twenty million, nine hundred sixty-one thousand, two hundred nineteen".