111421230 has 64 divisors (see below), whose sum is σ = 284834880. Its totient is φ = 27797504.

The previous prime is 111421183. The next prime is 111421243. The reversal of 111421230 is 32124111.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99916 + ... + 101024.

It is an arithmetic number, because the mean of its divisors is an integer number (4450545).

Almost surely, 2^111421230 is an apocalyptic number.

111421230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111421230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142417440).

111421230 is an abundant number, since it is smaller than the sum of its proper divisors (173413650).

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

111421230 is a wasteful number, since it uses less digits than its factorization.

111421230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 111421230 is about 10555.6255143881. The cubic root of 111421230 is about 481.1967101279.

Adding to 111421230 its reverse (32124111), we get a palindrome (143545341).

It can be divided in two parts, 11 and 1421230, that added together give a palindrome (1421241).

The spelling of 111421230 in words is "one hundred eleven million, four hundred twenty-one thousand, two hundred thirty".