321112199 has 4 divisors (see below), whose sum is σ = 321192360. Its totient is φ = 321032040.

The previous prime is 321112189. The next prime is 321112219. The reversal of 321112199 is 991211123.

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 321112199 - 2¹² = 321108103 is a prime.

It is a super-2 number, since 2×321112199² = 206226088693231202, which 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 (321112189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33737 + ... + 42194.

It is an arithmetic number, because the mean of its divisors is an integer number (80298090).

Almost surely, 2^321112199 is an apocalyptic number.

321112199 is a deficient number, since it is larger than the sum of its proper divisors (80161).

321112199 is an equidigital number, since it uses as much as digits as its factorization.

321112199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80160.

The product of its digits is 972, while the sum is 29.

The square root of 321112199 is about 17919.6037623604. The cubic root of 321112199 is about 684.7818930170.

The spelling of 321112199 in words is "three hundred twenty-one million, one hundred twelve thousand, one hundred ninety-nine".