11323540221 has 64 divisors (see below), whose sum is σ = 18286755840. Its totient is φ = 6097006080.

The previous prime is 11323540177. The next prime is 11323540223. The reversal of 11323540221 is 12204532311.

It is not a de Polignac number, because 11323540221 - 2²³ = 11315151613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11323540191 and 11323540200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11323540223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3880455 + ... + 3883371.

It is an arithmetic number, because the mean of its divisors is an integer number (285730560).

Almost surely, 2^11323540221 is an apocalyptic number.

It is an amenable number.

11323540221 is a deficient number, since it is larger than the sum of its proper divisors (6963215619).

11323540221 is a wasteful number, since it uses less digits than its factorization.

11323540221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 11323540221 in words is "eleven billion, three hundred twenty-three million, five hundred forty thousand, two hundred twenty-one".