111233211312 has 20 divisors (see below), whose sum is σ = 287352462680. Its totient is φ = 37077737088.

The previous prime is 111233211301. The next prime is 111233211413. The reversal of 111233211312 is 213112332111.

It is a super-2 number, since 2×111233211312² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158679237 + ... + 1158679332.

It is an arithmetic number, because the mean of its divisors is an integer number (14367623134).

Almost surely, 2^111233211312 is an apocalyptic number.

111233211312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111233211312 is an abundant number, since it is smaller than the sum of its proper divisors (176119251368).

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

111233211312 is a wasteful number, since it uses less digits than its factorization.

111233211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317358580 (or 2317358574 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

Adding to 111233211312 its reverse (213112332111), we get a palindrome (324345543423).

The spelling of 111233211312 in words is "one hundred eleven billion, two hundred thirty-three million, two hundred eleven thousand, three hundred twelve".