111842120951999 has 8 divisors (see below), whose sum is σ = 113601182820768. Its totient is φ = 110088165214720.

The previous prime is 111842120951933. The next prime is 111842120952007. The reversal of 111842120951999 is 999159021248111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111842120951999 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 (111842120951929) 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, 1276488722 + ... + 1276576335.

It is an arithmetic number, because the mean of its divisors is an integer number (14200147852596).

Almost surely, 2^{111842120951999} is an apocalyptic number.

111842120951999 is a deficient number, since it is larger than the sum of its proper divisors (1759061868769).

111842120951999 is an equidigital number, since it uses as much as digits as its factorization.

111842120951999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553065745.

The product of its (nonzero) digits is 4199040, while the sum is 62.

The spelling of 111842120951999 in words is "one hundred eleven trillion, eight hundred forty-two billion, one hundred twenty million, nine hundred fifty-one thousand, nine hundred ninety-nine".