999999908321371 has 2 divisors, whose sum is σ = 999999908321372. Its totient is φ = 999999908321370.

The previous prime is 999999908321327. The next prime is 999999908321383. The reversal of 999999908321371 is 173123809999999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999999908321371 - 2⁴⁷ = 859262419966043 is a prime.

It is not a weakly prime, because it can be changed into another prime (999999908321311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999954160685 + 499999954160686.

It is an arithmetic number, because the mean of its divisors is an integer number (499999954160686).

Almost surely, 2^{999999908321371} is an apocalyptic number.

999999908321371 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999908321371 is an equidigital number, since it uses as much as digits as its factorization.

999999908321371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4821232752, while the sum is 88.

The spelling of 999999908321371 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred eight million, three hundred twenty-one thousand, three hundred seventy-one".