214321220231 has 2 divisors, whose sum is σ = 214321220232. Its totient is φ = 214321220230.

The previous prime is 214321220227. The next prime is 214321220279. The reversal of 214321220231 is 132022123412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214321220231 - 2² = 214321220227 is a prime.

It is a super-2 number, since 2×214321220231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 214321220197 and 214321220206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214321220221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107160610115 + 107160610116.

It is an arithmetic number, because the mean of its divisors is an integer number (107160610116).

Almost surely, 2^214321220231 is an apocalyptic number.

214321220231 is a deficient number, since it is larger than the sum of its proper divisors (1).

214321220231 is an equidigital number, since it uses as much as digits as its factorization.

214321220231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 214321220231 its reverse (132022123412), we get a palindrome (346343343643).

The spelling of 214321220231 in words is "two hundred fourteen billion, three hundred twenty-one million, two hundred twenty thousand, two hundred thirty-one".