111230311230 has 96 divisors (see below), whose sum is σ = 291000981024. Its totient is φ = 29477081088.

The previous prime is 111230311151. The next prime is 111230311237. The reversal of 111230311230 is 32113032111.

111230311230 is a `hidden beast` number, since 1 + 1 + 123 + 0 + 311 + 230 = 666.

It is a super-2 number, since 2×111230311230² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111230311237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11465742 + ... + 11475438.

It is an arithmetic number, because the mean of its divisors is an integer number (3031260219).

Almost surely, 2^111230311230 is an apocalyptic number.

111230311230 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 111230311230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145500490512).

111230311230 is an abundant number, since it is smaller than the sum of its proper divisors (179770669794).

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

111230311230 is a wasteful number, since it uses less digits than its factorization.

111230311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10490 (or 10487 counting only the distinct ones).

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

Adding to 111230311230 its reverse (32113032111), we get a palindrome (143343343341).

The spelling of 111230311230 in words is "one hundred eleven billion, two hundred thirty million, three hundred eleven thousand, two hundred thirty".