111003042312 has 96 divisors (see below), whose sum is σ = 302960736000. Its totient is φ = 36715447680.

The previous prime is 111003042307. The next prime is 111003042329. The reversal of 111003042312 is 213240300111.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6164362 + ... + 6182342.

It is an arithmetic number, because the mean of its divisors is an integer number (3155841000).

Almost surely, 2^111003042312 is an apocalyptic number.

111003042312 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 111003042312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151480368000).

111003042312 is an abundant number, since it is smaller than the sum of its proper divisors (191957693688).

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

111003042312 is a wasteful number, since it uses less digits than its factorization.

111003042312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18651 (or 18644 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111003042312 its reverse (213240300111), we get a palindrome (324243342423).

The spelling of 111003042312 in words is "one hundred eleven billion, three million, forty-two thousand, three hundred twelve".