999942902311 has 2 divisors, whose sum is σ = 999942902312. Its totient is φ = 999942902310.

The previous prime is 999942902297. The next prime is 999942902317. The reversal of 999942902311 is 113209249999.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999942902311 - 2⁹ = 999942901799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999942902317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499971451155 + 499971451156.

It is an arithmetic number, because the mean of its divisors is an integer number (499971451156).

Almost surely, 2^999942902311 is an apocalyptic number.

999942902311 is a deficient number, since it is larger than the sum of its proper divisors (1).

999942902311 is an equidigital number, since it uses as much as digits as its factorization.

999942902311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2834352, while the sum is 58.

The spelling of 999942902311 in words is "nine hundred ninety-nine billion, nine hundred forty-two million, nine hundred two thousand, three hundred eleven".