11123430 has 32 divisors (see below), whose sum is σ = 26784000. Its totient is φ = 2956512.

The previous prime is 11123393. The next prime is 11123471. The reversal of 11123430 is 3432111.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 17661 + ... + 18279.

It is an arithmetic number, because the mean of its divisors is an integer number (837000).

Almost surely, 2^11123430 is an apocalyptic number.

11123430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11123430 is an abundant number, since it is smaller than the sum of its proper divisors (15660570).

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

11123430 is a wasteful number, since it uses less digits than its factorization.

11123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11123430 is about 3335.1806547772. The cubic root of 11123430 is about 223.2267529372.

Adding to 11123430 its reverse (3432111), we get a palindrome (14555541).

The spelling of 11123430 in words is "eleven million, one hundred twenty-three thousand, four hundred thirty".