111312321320999 has 8 divisors (see below), whose sum is σ = 117637680746880. Its totient is φ = 105033643515000.

The previous prime is 111312321320969. The next prime is 111312321321007. The reversal of 111312321320999 is 999023123213111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111312321320999 - 2⁸ = 111312321320743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312321320969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11670400067 + ... + 11670409604.

It is an arithmetic number, because the mean of its divisors is an integer number (14704710093360).

Almost surely, 2^{111312321320999} is an apocalyptic number.

111312321320999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

111312321320999 is a deficient number, since it is larger than the sum of its proper divisors (6325359425881).

111312321320999 is a wasteful number, since it uses less digits than its factorization.

111312321320999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23340809941.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 111312321320999 in words is "one hundred eleven trillion, three hundred twelve billion, three hundred twenty-one million, three hundred twenty thousand, nine hundred ninety-nine".