21112020000179 has 2 divisors, whose sum is σ = 21112020000180. Its totient is φ = 21112020000178.

The previous prime is 21112020000047. The next prime is 21112020000187. The reversal of 21112020000179 is 97100002021112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21112020000179 is a prime.

It is not a weakly prime, because it can be changed into another prime (21112020006179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556010000089 + 10556010000090.

It is an arithmetic number, because the mean of its divisors is an integer number (10556010000090).

Almost surely, 2^{21112020000179} is an apocalyptic number.

21112020000179 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112020000179 is an equidigital number, since it uses as much as digits as its factorization.

21112020000179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 21112020000179 in words is "twenty-one trillion, one hundred twelve billion, twenty million, one hundred seventy-nine", and thus it is an aban number.