112561973999 has 16 divisors (see below), whose sum is σ = 121193210880. Its totient is φ = 104208403680.

The previous prime is 112561973957. The next prime is 112561974059. The reversal of 112561973999 is 999379165211.

It is a cyclic number.

It is not a de Polignac number, because 112561973999 - 2²⁰ = 112560925423 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 (112561973399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486614 + ... + 679644.

It is an arithmetic number, because the mean of its divisors is an integer number (7574575680).

Almost surely, 2^112561973999 is an apocalyptic number.

112561973999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

112561973999 is a deficient number, since it is larger than the sum of its proper divisors (8631236881).

112561973999 is a wasteful number, since it uses less digits than its factorization.

112561973999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193750.

The product of its digits is 8266860, while the sum is 62.

The spelling of 112561973999 in words is "one hundred twelve billion, five hundred sixty-one million, nine hundred seventy-three thousand, nine hundred ninety-nine".