214242321 has 16 divisors (see below), whose sum is σ = 294076224. Its totient is φ = 138636864.

The previous prime is 214242319. The next prime is 214242323. The reversal of 214242321 is 123242412.

It is an interprime number because it is at equal distance from previous prime (214242319) and next prime (214242323).

It is not a de Polignac number, because 214242321 - 2¹ = 214242319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214242323) 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, 49771 + ... + 53903.

It is an arithmetic number, because the mean of its divisors is an integer number (18379764).

Almost surely, 2^214242321 is an apocalyptic number.

It is an amenable number.

214242321 is a deficient number, since it is larger than the sum of its proper divisors (79833903).

214242321 is a wasteful number, since it uses less digits than its factorization.

214242321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4640.

The product of its digits is 768, while the sum is 21.

The square root of 214242321 is about 14637.0188563109. The cubic root of 214242321 is about 598.3680848903.

Adding to 214242321 its reverse (123242412), we get a palindrome (337484733).

Subtracting from 214242321 its reverse (123242412), we obtain a palindrome (90999909).

The spelling of 214242321 in words is "two hundred fourteen million, two hundred forty-two thousand, three hundred twenty-one".