112431221 has 4 divisors (see below), whose sum is σ = 128492832. Its totient is φ = 96369612.

The previous prime is 112431157. The next prime is 112431239. The reversal of 112431221 is 122134211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112431221 - 2⁶ = 112431157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112431221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112431821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8030795 + ... + 8030808.

It is an arithmetic number, because the mean of its divisors is an integer number (32123208).

Almost surely, 2^112431221 is an apocalyptic number.

It is an amenable number.

112431221 is a deficient number, since it is larger than the sum of its proper divisors (16061611).

112431221 is an equidigital number, since it uses as much as digits as its factorization.

112431221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16061610.

The product of its digits is 96, while the sum is 17.

The square root of 112431221 is about 10603.3589489369. The cubic root of 112431221 is about 482.6462938855.

Adding to 112431221 its reverse (122134211), we get a palindrome (234565432).

The spelling of 112431221 in words is "one hundred twelve million, four hundred thirty-one thousand, two hundred twenty-one".