11723054519 has 32 divisors (see below), whose sum is σ = 13552939008. Its totient is φ = 10039968000.

The previous prime is 11723054513. The next prime is 11723054579. The reversal of 11723054519 is 91545032711.

It is a cyclic number.

It is not a de Polignac number, because 11723054519 - 2⁸ = 11723054263 is a prime.

It is a super-2 number, since 2×11723054519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11723054513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11925302 + ... + 11926284.

It is an arithmetic number, because the mean of its divisors is an integer number (423529344).

Almost surely, 2^11723054519 is an apocalyptic number.

11723054519 is a deficient number, since it is larger than the sum of its proper divisors (1829884489).

11723054519 is a wasteful number, since it uses less digits than its factorization.

11723054519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 11723054519 in words is "eleven billion, seven hundred twenty-three million, fifty-four thousand, five hundred nineteen".