321001099099 has 2 divisors, whose sum is σ = 321001099100. Its totient is φ = 321001099098.

The previous prime is 321001099079. The next prime is 321001099103. The reversal of 321001099099 is 990990100123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321001099099 - 2¹⁷ = 321000968027 is a prime.

It is a super-2 number, since 2×321001099099² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (321001099019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160500549549 + 160500549550.

It is an arithmetic number, because the mean of its divisors is an integer number (160500549550).

Almost surely, 2^321001099099 is an apocalyptic number.

321001099099 is a deficient number, since it is larger than the sum of its proper divisors (1).

321001099099 is an equidigital number, since it uses as much as digits as its factorization.

321001099099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366, while the sum is 43.

The spelling of 321001099099 in words is "three hundred twenty-one billion, one million, ninety-nine thousand, ninety-nine".