999942902323 has 2 divisors, whose sum is σ = 999942902324. Its totient is φ = 999942902322.

The previous prime is 999942902317. The next prime is 999942902327. The reversal of 999942902323 is 323209249999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999942902323 - 2¹⁷ = 999942771251 is a prime.

It is a super-2 number, since 2×999942902323² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (999942902327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499971451161 + 499971451162.

It is an arithmetic number, because the mean of its divisors is an integer number (499971451162).

Almost surely, 2^999942902323 is an apocalyptic number.

999942902323 is a deficient number, since it is larger than the sum of its proper divisors (1).

999942902323 is an equidigital number, since it uses as much as digits as its factorization.

999942902323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17006112, while the sum is 61.

The spelling of 999942902323 in words is "nine hundred ninety-nine billion, nine hundred forty-two million, nine hundred two thousand, three hundred twenty-three".