111983997997 has 8 divisors (see below), whose sum is σ = 112403348576. Its totient is φ = 111564756432.

The previous prime is 111983997977. The next prime is 111983998003. The reversal of 111983997997 is 799799389111.

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 111983997997 - 2¹⁵ = 111983965229 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 (111983997977) 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, 2449018 + ... + 2494324.

It is an arithmetic number, because the mean of its divisors is an integer number (14050418572).

Almost surely, 2^111983997997 is an apocalyptic number.

It is an amenable number.

111983997997 is a deficient number, since it is larger than the sum of its proper divisors (419350579).

111983997997 is an equidigital number, since it uses as much as digits as its factorization.

111983997997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54507.

The product of its digits is 69441624, while the sum is 73.

The spelling of 111983997997 in words is "one hundred eleven billion, nine hundred eighty-three million, nine hundred ninety-seven thousand, nine hundred ninety-seven".