1010020079 has 2 divisors, whose sum is σ = 1010020080. Its totient is φ = 1010020078.

The previous prime is 1010020073. The next prime is 1010020097. The reversal of 1010020079 is 9700200101.

Together with next prime (1010020097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1010020079 - 2²⁰ = 1008971503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010020079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010020073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505010039 + 505010040.

It is an arithmetic number, because the mean of its divisors is an integer number (505010040).

Almost surely, 2^1010020079 is an apocalyptic number.

1010020079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010020079 is an equidigital number, since it uses as much as digits as its factorization.

1010020079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 1010020079 is about 31780.8130638598. The cubic root of 1010020079 is about 1003.3289322466.

The spelling of 1010020079 in words is "one billion, ten million, twenty thousand, seventy-nine".