321352223399 has 4 divisors (see below), whose sum is σ = 330037418664. Its totient is φ = 312667028136.

The previous prime is 321352223299. The next prime is 321352223407. The reversal of 321352223399 is 993322253123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321352223399 - 2¹² = 321352219303 is a prime.

It is a super-2 number, since 2×321352223399² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321352223299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4342597577 + ... + 4342597650.

It is an arithmetic number, because the mean of its divisors is an integer number (82509354666).

Almost surely, 2^321352223399 is an apocalyptic number.

321352223399 is a deficient number, since it is larger than the sum of its proper divisors (8685195265).

321352223399 is an equidigital number, since it uses as much as digits as its factorization.

321352223399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685195264.

The product of its digits is 524880, while the sum is 44.

The spelling of 321352223399 in words is "three hundred twenty-one billion, three hundred fifty-two million, two hundred twenty-three thousand, three hundred ninety-nine".