12020312999 has 2 divisors, whose sum is σ = 12020313000. Its totient is φ = 12020312998.

The previous prime is 12020312977. The next prime is 12020313013. The reversal of 12020312999 is 99921302021.

It is a strong prime.

It is an emirp because it is prime and its reverse (99921302021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12020312999 - 2⁸ = 12020312743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020312929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010156499 + 6010156500.

It is an arithmetic number, because the mean of its divisors is an integer number (6010156500).

Almost surely, 2^12020312999 is an apocalyptic number.

12020312999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020312999 is an equidigital number, since it uses as much as digits as its factorization.

12020312999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 12020312999 in words is "twelve billion, twenty million, three hundred twelve thousand, nine hundred ninety-nine".