111311230230 has 48 divisors (see below), whose sum is σ = 289484526240. Its totient is φ = 29675268864.

The previous prime is 111311230193. The next prime is 111311230241. The reversal of 111311230230 is 32032113111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190999 + ... + 509021.

It is an arithmetic number, because the mean of its divisors is an integer number (6030927630).

Almost surely, 2^111311230230 is an apocalyptic number.

111311230230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111311230230 is an abundant number, since it is smaller than the sum of its proper divisors (178173296010).

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

111311230230 is a wasteful number, since it uses less digits than its factorization.

111311230230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321925 (or 321922 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 111311230230 its reverse (32032113111), we get a palindrome (143343343341).

The spelling of 111311230230 in words is "one hundred eleven billion, three hundred eleven million, two hundred thirty thousand, two hundred thirty".