11238722523 has 12 divisors (see below), whose sum is σ = 18552811888. Its totient is φ = 6422127120.

The previous prime is 11238722513. The next prime is 11238722531. The reversal of 11238722523 is 32522783211.

11238722523 is a `hidden beast` number, since 1 + 123 + 8 + 7 + 2 + 2 + 523 = 666.

It is not a de Polignac number, because 11238722523 - 2⁶ = 11238722459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11238722513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89196148 + ... + 89196273.

Almost surely, 2^11238722523 is an apocalyptic number.

11238722523 is a deficient number, since it is larger than the sum of its proper divisors (7314089365).

11238722523 is a wasteful number, since it uses less digits than its factorization.

11238722523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178392434 (or 178392431 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The spelling of 11238722523 in words is "eleven billion, two hundred thirty-eight million, seven hundred twenty-two thousand, five hundred twenty-three".