111799330542 has 32 divisors (see below), whose sum is σ = 249081674400. Its totient is φ = 37170635904.

The previous prime is 111799330471. The next prime is 111799330547. The reversal of 111799330542 is 245033997111.

111799330542 is a `hidden beast` number, since 1 + 1 + 1 + 79 + 9 + 3 + 30 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111799330547) 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 15 ways as a sum of consecutive naturals, for example, 2640123 + ... + 2682134.

It is an arithmetic number, because the mean of its divisors is an integer number (7783802325).

Almost surely, 2^111799330542 is an apocalyptic number.

111799330542 is an abundant number, since it is smaller than the sum of its proper divisors (137282343858).

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

111799330542 is a wasteful number, since it uses less digits than its factorization.

111799330542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322657 (or 5322651 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 111799330542 in words is "one hundred eleven billion, seven hundred ninety-nine million, three hundred thirty thousand, five hundred forty-two".