111312023230212 has 384 divisors, whose sum is σ = 317050334576640. Its totient is φ = 29717596016640.

The previous prime is 111312023230207. The next prime is 111312023230223. The reversal of 111312023230212 is 212032320213111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 46168403287 + ... + 46168405697.

It is an arithmetic number, because the mean of its divisors is an integer number (825651912960).

Almost surely, 2^{111312023230212} is an apocalyptic number.

111312023230212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111312023230212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158525167288320).

111312023230212 is an abundant number, since it is smaller than the sum of its proper divisors (205738311346428).

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

111312023230212 is a wasteful number, since it uses less digits than its factorization.

111312023230212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011 (or 5009 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 111312023230212 its reverse (212032320213111), we get a palindrome (323344343443323).

The spelling of 111312023230212 in words is "one hundred eleven trillion, three hundred twelve billion, twenty-three million, two hundred thirty thousand, two hundred twelve".