342320021999 has 2 divisors, whose sum is σ = 342320022000. Its totient is φ = 342320021998.

The previous prime is 342320021987. The next prime is 342320022007. The reversal of 342320021999 is 999120023243.

It is a strong prime.

It is an emirp because it is prime and its reverse (999120023243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342320021999 - 2⁴ = 342320021983 is a prime.

It is a super-2 number, since 2×342320021999² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342320021929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171160010999 + 171160011000.

It is an arithmetic number, because the mean of its divisors is an integer number (171160011000).

Almost surely, 2^342320021999 is an apocalyptic number.

342320021999 is a deficient number, since it is larger than the sum of its proper divisors (1).

342320021999 is an equidigital number, since it uses as much as digits as its factorization.

342320021999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 342320021999 in words is "three hundred forty-two billion, three hundred twenty million, twenty-one thousand, nine hundred ninety-nine".