210102020120039 has 2 divisors, whose sum is σ = 210102020120040. Its totient is φ = 210102020120038.

The previous prime is 210102020120011. The next prime is 210102020120053. The reversal of 210102020120039 is 930021020201012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210102020120039 - 2²⁰ = 210102019071463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210102020119996 and 210102020120023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210102020120059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051010060019 + 105051010060020.

It is an arithmetic number, because the mean of its divisors is an integer number (105051010060020).

Almost surely, 2^{210102020120039} is an apocalyptic number.

210102020120039 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102020120039 is an equidigital number, since it uses as much as digits as its factorization.

210102020120039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 210102020120039 in words is "two hundred ten trillion, one hundred two billion, twenty million, one hundred twenty thousand, thirty-nine".