111423204400 has 60 divisors (see below), whose sum is σ = 269039638000. Its totient is φ = 44345283840.

The previous prime is 111423204337. The next prime is 111423204407. The reversal of 111423204400 is 4402324111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111423204407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620295 + ... + 779494.

Almost surely, 2^111423204400 is an apocalyptic number.

111423204400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111423204400 is an abundant number, since it is smaller than the sum of its proper divisors (157616433600).

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

111423204400 is a wasteful number, since it uses less digits than its factorization.

111423204400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400006 (or 1399995 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 111423204400 its reverse (4402324111), we get a palindrome (115825528511).

The spelling of 111423204400 in words is "one hundred eleven billion, four hundred twenty-three million, two hundred four thousand, four hundred".