321140223 has 12 divisors (see below), whose sum is σ = 488283640. Its totient is φ = 202825296.

The previous prime is 321140207. The next prime is 321140231. The reversal of 321140223 is 322041123.

It is not a de Polignac number, because 321140223 - 2⁴ = 321140207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321140196 and 321140205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321140233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 938836 + ... + 939177.

Almost surely, 2^321140223 is an apocalyptic number.

321140223 is a deficient number, since it is larger than the sum of its proper divisors (167143417).

321140223 is a wasteful number, since it uses less digits than its factorization.

321140223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878038 (or 1878035 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 321140223 is about 17920.3856822335. The cubic root of 321140223 is about 684.8018131255.

Adding to 321140223 its reverse (322041123), we get a palindrome (643181346).

It can be divided in two parts, 3211 and 40223, that added together give a palindrome (43434).

The spelling of 321140223 in words is "three hundred twenty-one million, one hundred forty thousand, two hundred twenty-three".