111131230 has 32 divisors (see below), whose sum is σ = 230376960. Its totient is φ = 37808160.

The previous prime is 111131213. The next prime is 111131231. The reversal of 111131230 is 32131111.

It is a self number, because there is not a number n which added to its sum of digits gives 111131230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111131231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3111 + ... + 15229.

It is an arithmetic number, because the mean of its divisors is an integer number (7199280).

Almost surely, 2^111131230 is an apocalyptic number.

111131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111131230 is an abundant number, since it is smaller than the sum of its proper divisors (119245730).

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

111131230 is a wasteful number, since it uses less digits than its factorization.

111131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12264.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 111131230 is about 10541.8798133919. The cubic root of 111131230 is about 480.7788714768.

Adding to 111131230 its reverse (32131111), we get a palindrome (143262341).

The spelling of 111131230 in words is "one hundred eleven million, one hundred thirty-one thousand, two hundred thirty".