111541994009 has 8 divisors (see below), whose sum is σ = 115207003392. Its totient is φ = 107881164720.

The previous prime is 111541993987. The next prime is 111541994059. The reversal of 111541994009 is 900499145111.

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 111541994009 - 2¹⁶ = 111541928473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111541994059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 990734 + ... + 1097559.

It is an arithmetic number, because the mean of its divisors is an integer number (14400875424).

Almost surely, 2^111541994009 is an apocalyptic number.

It is an amenable number.

111541994009 is a deficient number, since it is larger than the sum of its proper divisors (3665009383).

111541994009 is a wasteful number, since it uses less digits than its factorization.

111541994009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090047.

The product of its (nonzero) digits is 58320, while the sum is 44.

The spelling of 111541994009 in words is "one hundred eleven billion, five hundred forty-one million, nine hundred ninety-four thousand, nine".