321320229 has 16 divisors (see below), whose sum is σ = 451476480. Its totient is φ = 202713840.

The previous prime is 321320221. The next prime is 321320269. The reversal of 321320229 is 922023123.

It is not a de Polignac number, because 321320229 - 2³ = 321320221 is a prime.

It is a super-2 number, since 2×321320229² = 206493379129224882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321320199 and 321320208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321320221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59604 + ... + 64770.

It is an arithmetic number, because the mean of its divisors is an integer number (28217280).

Almost surely, 2^321320229 is an apocalyptic number.

It is an amenable number.

321320229 is a deficient number, since it is larger than the sum of its proper divisors (130156251).

321320229 is a wasteful number, since it uses less digits than its factorization.

321320229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6280.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 321320229 is about 17925.4073593880. The cubic root of 321320229 is about 684.9297379404.

The spelling of 321320229 in words is "three hundred twenty-one million, three hundred twenty thousand, two hundred twenty-nine".