111234230243020 has 24 divisors (see below), whose sum is σ = 233592100963200. Its totient is φ = 44493650677632.

The previous prime is 111234230242951. The next prime is 111234230243021. The reversal of 111234230243020 is 20342032432111.

It is a self number, because there is not a number n which added to its sum of digits gives 111234230243020.

It is not an unprimeable number, because it can be changed into a prime (111234230243021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28594216 + ... + 32250544.

It is an arithmetic number, because the mean of its divisors is an integer number (9733004206800).

Almost surely, 2^{111234230243020} is an apocalyptic number.

111234230243020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111234230243020 is an abundant number, since it is smaller than the sum of its proper divisors (122357870720180).

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

111234230243020 is a wasteful number, since it uses less digits than its factorization.

111234230243020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177457 (or 5177455 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 111234230243020 its reverse (20342032432111), we get a palindrome (131576262675131).

The spelling of 111234230243020 in words is "one hundred eleven trillion, two hundred thirty-four billion, two hundred thirty million, two hundred forty-three thousand, twenty".