112820720251979 has 16 divisors (see below), whose sum is σ = 121009667385600. Its totient is φ = 104857217408736.

The previous prime is 112820720251963. The next prime is 112820720252039. The reversal of 112820720251979 is 979152027028211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 112820720251979 - 2⁴ = 112820720251963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112820720251919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7105682 + ... + 16617224.

It is an arithmetic number, because the mean of its divisors is an integer number (7563104211600).

Almost surely, 2^{112820720251979} is an apocalyptic number.

112820720251979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

112820720251979 is a deficient number, since it is larger than the sum of its proper divisors (8188947133621).

112820720251979 is a wasteful number, since it uses less digits than its factorization.

112820720251979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9523394.

The product of its (nonzero) digits is 2540160, while the sum is 56.

The spelling of 112820720251979 in words is "one hundred twelve trillion, eight hundred twenty billion, seven hundred twenty million, two hundred fifty-one thousand, nine hundred seventy-nine".