111430452 has 48 divisors (see below), whose sum is σ = 298282880. Its totient is φ = 31715712.

The previous prime is 111430411. The next prime is 111430463. The reversal of 111430452 is 254034111.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 20874 + ... + 25662.

Almost surely, 2^111430452 is an apocalyptic number.

111430452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111430452 is an abundant number, since it is smaller than the sum of its proper divisors (186852428).

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

111430452 is a wasteful number, since it uses less digits than its factorization.

111430452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080 (or 5078 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 111430452 is about 10556.0623340335. The cubic root of 111430452 is about 481.2099854963.

Adding to 111430452 its reverse (254034111), we get a palindrome (365464563).

The spelling of 111430452 in words is "one hundred eleven million, four hundred thirty thousand, four hundred fifty-two".