11124421400 has 24 divisors (see below), whose sum is σ = 25864280220. Its totient is φ = 4449768480.

The previous prime is 11124421381. The next prime is 11124421403. The reversal of 11124421400 is 412442111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11124421403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27810854 + ... + 27811253.

Almost surely, 2^11124421400 is an apocalyptic number.

11124421400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11124421400 is an abundant number, since it is smaller than the sum of its proper divisors (14739858820).

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

11124421400 is a wasteful number, since it uses less digits than its factorization.

11124421400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55622123 (or 55622114 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11124421400 its reverse (412442111), we get a palindrome (11536863511).

The spelling of 11124421400 in words is "eleven billion, one hundred twenty-four million, four hundred twenty-one thousand, four hundred".