111424401 has 12 divisors (see below), whose sum is σ = 175578000. Its totient is φ = 67529880.

The previous prime is 111424393. The next prime is 111424433. The reversal of 111424401 is 104424111.

It is not a de Polignac number, because 111424401 - 2³ = 111424393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111424471) 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, 562651 + ... + 562848.

It is an arithmetic number, because the mean of its divisors is an integer number (14631500).

Almost surely, 2^111424401 is an apocalyptic number.

111424401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111424401 is a deficient number, since it is larger than the sum of its proper divisors (64153599).

111424401 is a wasteful number, since it uses less digits than its factorization.

111424401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125516 (or 1125513 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 111424401 is about 10555.7757175870. The cubic root of 111424401 is about 481.2012749680.

Adding to 111424401 its reverse (104424111), we get a palindrome (215848512).

The spelling of 111424401 in words is "one hundred eleven million, four hundred twenty-four thousand, four hundred one".