321230461 has 2 divisors, whose sum is σ = 321230462. Its totient is φ = 321230460.

The previous prime is 321230431. The next prime is 321230491. The reversal of 321230461 is 164032123.

It is a balanced prime because it is at equal distance from previous prime (321230431) and next prime (321230491).

It can be written as a sum of positive squares in only one way, i.e., 191407225 + 129823236 = 13835^2 + 11394^2 .

It is an emirp because it is prime and its reverse (164032123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321230461 - 2⁹ = 321229949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321230431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160615230 + 160615231.

It is an arithmetic number, because the mean of its divisors is an integer number (160615231).

Almost surely, 2^321230461 is an apocalyptic number.

It is an amenable number.

321230461 is a deficient number, since it is larger than the sum of its proper divisors (1).

321230461 is an equidigital number, since it uses as much as digits as its factorization.

321230461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 321230461 is about 17922.9032525425. The cubic root of 321230461 is about 684.8659485140.

Adding to 321230461 its reverse (164032123), we get a palindrome (485262584).

The spelling of 321230461 in words is "three hundred twenty-one million, two hundred thirty thousand, four hundred sixty-one".