11323521420 has 24 divisors (see below), whose sum is σ = 31705860144. Its totient is φ = 3019605696.

The previous prime is 11323521383. The next prime is 11323521431. The reversal of 11323521420 is 2412532311.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94362619 + ... + 94362738.

It is an arithmetic number, because the mean of its divisors is an integer number (1321077506).

Almost surely, 2^11323521420 is an apocalyptic number.

11323521420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11323521420 is an abundant number, since it is smaller than the sum of its proper divisors (20382338724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11323521420 is a wasteful number, since it uses less digits than its factorization.

11323521420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188725369 (or 188725367 counting only the distinct ones).

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

The spelling of 11323521420 in words is "eleven billion, three hundred twenty-three million, five hundred twenty-one thousand, four hundred twenty".