20200112100979 has 2 divisors, whose sum is σ = 20200112100980. Its totient is φ = 20200112100978.

The previous prime is 20200112100941. The next prime is 20200112101063. The reversal of 20200112100979 is 97900121100202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20200112100979 is a prime.

It is not a weakly prime, because it can be changed into another prime (20200112103979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100056050489 + 10100056050490.

It is an arithmetic number, because the mean of its divisors is an integer number (10100056050490).

Almost surely, 2^{20200112100979} is an apocalyptic number.

20200112100979 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200112100979 is an equidigital number, since it uses as much as digits as its factorization.

20200112100979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 20200112100979 in words is "twenty trillion, two hundred billion, one hundred twelve million, one hundred thousand, nine hundred seventy-nine".