20102002079 has 2 divisors, whose sum is σ = 20102002080. Its totient is φ = 20102002078.

The previous prime is 20102002003. The next prime is 20102002169. The reversal of 20102002079 is 97020020102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20102002079 - 2⁸ = 20102001823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102002279) 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 as a sum of consecutive naturals, namely, 10051001039 + 10051001040.

It is an arithmetic number, because the mean of its divisors is an integer number (10051001040).

Almost surely, 2^20102002079 is an apocalyptic number.

20102002079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102002079 is an equidigital number, since it uses as much as digits as its factorization.

20102002079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The spelling of 20102002079 in words is "twenty billion, one hundred two million, two thousand, seventy-nine".