321434424441461 has 2 divisors, whose sum is σ = 321434424441462. Its totient is φ = 321434424441460.

The previous prime is 321434424441421. The next prime is 321434424441491. The reversal of 321434424441461 is 164144424434123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312891699675025 + 8542724766436 = 17688745^2 + 2922794^2 .

It is a cyclic number.

It is not a de Polignac number, because 321434424441461 - 2¹⁸ = 321434424179317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321434424441421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160717212220730 + 160717212220731.

It is an arithmetic number, because the mean of its divisors is an integer number (160717212220731).

Almost surely, 2^{321434424441461} is an apocalyptic number.

It is an amenable number.

321434424441461 is a deficient number, since it is larger than the sum of its proper divisors (1).

321434424441461 is an equidigital number, since it uses as much as digits as its factorization.

321434424441461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3538944, while the sum is 47.

Adding to 321434424441461 its reverse (164144424434123), we get a palindrome (485578848875584).

The spelling of 321434424441461 in words is "three hundred twenty-one trillion, four hundred thirty-four billion, four hundred twenty-four million, four hundred forty-one thousand, four hundred sixty-one".