1111320123312 has 40 divisors (see below), whose sum is σ = 3281040365056. Its totient is φ = 317520035136.

The previous prime is 1111320123299. The next prime is 1111320123323. The reversal of 1111320123312 is 2133210231111.

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

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 7 ways as a sum of consecutive naturals, for example, 1653749848 + ... + 1653750519.

Almost surely, 2^{1111320123312} is an apocalyptic number.

1111320123312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111320123312 is an abundant number, since it is smaller than the sum of its proper divisors (2169720241744).

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

1111320123312 is a wasteful number, since it uses less digits than its factorization.

1111320123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307500385 (or 3307500379 counting only the distinct ones).

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

Adding to 1111320123312 its reverse (2133210231111), we get a palindrome (3244530354423).

The spelling of 1111320123312 in words is "one trillion, one hundred eleven billion, three hundred twenty million, one hundred twenty-three thousand, three hundred twelve".