102101020079 has 2 divisors, whose sum is σ = 102101020080. Its totient is φ = 102101020078.

The previous prime is 102101020067. The next prime is 102101020117. The reversal of 102101020079 is 970020101201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102101020079 is a prime.

It is a super-2 number, since 2×102101020079² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102101020019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050510039 + 51050510040.

It is an arithmetic number, because the mean of its divisors is an integer number (51050510040).

Almost surely, 2^102101020079 is an apocalyptic number.

102101020079 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101020079 is an equidigital number, since it uses as much as digits as its factorization.

102101020079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 102101020079 in words is "one hundred two billion, one hundred one million, twenty thousand, seventy-nine".