11123400 has 48 divisors (see below), whose sum is σ = 34484400. Its totient is φ = 2966080.

The previous prime is 11123393. The next prime is 11123471. The reversal of 11123400 is 432111.

It is a happy number.

11123400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8670 + ... + 9869.

It is an arithmetic number, because the mean of its divisors is an integer number (718425).

Almost surely, 2^11123400 is an apocalyptic number.

11123400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11123400 is an abundant number, since it is smaller than the sum of its proper divisors (23361000).

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

11123400 is a wasteful number, since it uses less digits than its factorization.

11123400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18558 (or 18549 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11123400 is about 3335.1761572667. The cubic root of 11123400 is about 223.2265522554.

Adding to 11123400 its reverse (432111), we get a palindrome (11555511).

The spelling of 11123400 in words is "eleven million, one hundred twenty-three thousand, four hundred".