1111113231312 has 80 divisors (see below), whose sum is σ = 3295140208640. Its totient is φ = 316037310336.

The previous prime is 1111113231299. The next prime is 1111113231329. The reversal of 1111113231312 is 2131323111111.

It is a super-2 number, since 2×1111113231312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7339612 + ... + 7489467.

It is an arithmetic number, because the mean of its divisors is an integer number (41189252608).

Almost surely, 2^{1111113231312} is an apocalyptic number.

1111113231312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111113231312 is an abundant number, since it is smaller than the sum of its proper divisors (2184026977328).

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

1111113231312 is a wasteful number, since it uses less digits than its factorization.

1111113231312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14829320 (or 14829314 counting only the distinct ones).

The product of its digits is 108, while the sum is 21.

Adding to 1111113231312 its reverse (2131323111111), we get a palindrome (3242436342423).

The spelling of 1111113231312 in words is "one trillion, one hundred eleven billion, one hundred thirteen million, two hundred thirty-one thousand, three hundred twelve".