1020210120079 has 2 divisors, whose sum is σ = 1020210120080. Its totient is φ = 1020210120078.

The previous prime is 1020210120071. The next prime is 1020210120143. The reversal of 1020210120079 is 9700210120201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020210120079 - 2³ = 1020210120071 is a prime.

It is a super-2 number, since 2×1020210120079² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020210120071) 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, 510105060039 + 510105060040.

It is an arithmetic number, because the mean of its divisors is an integer number (510105060040).

Almost surely, 2^{1020210120079} is an apocalyptic number.

1020210120079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020210120079 is an equidigital number, since it uses as much as digits as its factorization.

1020210120079 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 25.

The spelling of 1020210120079 in words is "one trillion, twenty billion, two hundred ten million, one hundred twenty thousand, seventy-nine".