2021310343999 has 2 divisors, whose sum is σ = 2021310344000. Its totient is φ = 2021310343998.

The previous prime is 2021310343979. The next prime is 2021310344017. The reversal of 2021310343999 is 9993430131202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021310343999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021310343979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010655171999 + 1010655172000.

It is an arithmetic number, because the mean of its divisors is an integer number (1010655172000).

Almost surely, 2^{2021310343999} is an apocalyptic number.

2021310343999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021310343999 is an equidigital number, since it uses as much as digits as its factorization.

2021310343999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 46.

The spelling of 2021310343999 in words is "two trillion, twenty-one billion, three hundred ten million, three hundred forty-three thousand, nine hundred ninety-nine".