321143214 has 32 divisors (see below), whose sum is σ = 734572800. Its totient is φ = 91688832.

The previous prime is 321143213. The next prime is 321143219. The reversal of 321143214 is 412341123.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321143213) 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, 111942 + ... + 114774.

It is an arithmetic number, because the mean of its divisors is an integer number (22955400).

Almost surely, 2^321143214 is an apocalyptic number.

321143214 is an abundant number, since it is smaller than the sum of its proper divisors (413429586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321143214 is a wasteful number, since it uses less digits than its factorization.

321143214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5544.

The product of its digits is 576, while the sum is 21.

The square root of 321143214 is about 17920.4691344842. The cubic root of 321143214 is about 684.8039391291.

Adding to 321143214 its reverse (412341123), we get a palindrome (733484337).

The spelling of 321143214 in words is "three hundred twenty-one million, one hundred forty-three thousand, two hundred fourteen".