12020100019709 has 2 divisors, whose sum is σ = 12020100019710. Its totient is φ = 12020100019708.

The previous prime is 12020100019661. The next prime is 12020100019727. The reversal of 12020100019709 is 90791000102021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6748382995225 + 5271717024484 = 2597765^2 + 2296022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020100019709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020100019729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010050009854 + 6010050009855.

It is an arithmetic number, because the mean of its divisors is an integer number (6010050009855).

Almost surely, 2^{12020100019709} is an apocalyptic number.

It is an amenable number.

12020100019709 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020100019709 is an equidigital number, since it uses as much as digits as its factorization.

12020100019709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

The spelling of 12020100019709 in words is "twelve trillion, twenty billion, one hundred million, nineteen thousand, seven hundred nine".