11242554420 has 48 divisors (see below), whose sum is σ = 31790844288. Its totient is φ = 2968329600.

The previous prime is 11242554347. The next prime is 11242554443. The reversal of 11242554420 is 2445524211.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921544 + ... + 933663.

It is an arithmetic number, because the mean of its divisors is an integer number (662309256).

Almost surely, 2^11242554420 is an apocalyptic number.

11242554420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11242554420 is an abundant number, since it is smaller than the sum of its proper divisors (20548289868).

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

11242554420 is a wasteful number, since it uses less digits than its factorization.

11242554420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855320 (or 1855318 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 11242554420 in words is "eleven billion, two hundred forty-two million, five hundred fifty-four thousand, four hundred twenty".