234311321 has 2 divisors, whose sum is σ = 234311322. Its totient is φ = 234311320.

The previous prime is 234311267. The next prime is 234311347. The reversal of 234311321 is 123113432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232135696 + 2175625 = 15236^2 + 1475^2 .

It is a cyclic number.

It is not a de Polignac number, because 234311321 - 2¹⁴ = 234294937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 234311293 and 234311302.

It is not a weakly prime, because it can be changed into another prime (234311821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117155660 + 117155661.

It is an arithmetic number, because the mean of its divisors is an integer number (117155661).

Almost surely, 2^234311321 is an apocalyptic number.

It is an amenable number.

234311321 is a deficient number, since it is larger than the sum of its proper divisors (1).

234311321 is an equidigital number, since it uses as much as digits as its factorization.

234311321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 234311321 is about 15307.2310036793. The cubic root of 234311321 is about 616.4971749759.

Adding to 234311321 its reverse (123113432), we get a palindrome (357424753).

The spelling of 234311321 in words is "two hundred thirty-four million, three hundred eleven thousand, three hundred twenty-one".