321234427 has 2 divisors, whose sum is σ = 321234428. Its totient is φ = 321234426.

The previous prime is 321234413. The next prime is 321234497. The reversal of 321234427 is 724432123.

It is a weak prime.

It is an emirp because it is prime and its reverse (724432123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321234427 - 2¹⁵ = 321201659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321234395 and 321234404.

It is not a weakly prime, because it can be changed into another prime (321234497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160617213 + 160617214.

It is an arithmetic number, because the mean of its divisors is an integer number (160617214).

Almost surely, 2^321234427 is an apocalyptic number.

321234427 is a deficient number, since it is larger than the sum of its proper divisors (1).

321234427 is an equidigital number, since it uses as much as digits as its factorization.

321234427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 28.

The square root of 321234427 is about 17923.0138927581. The cubic root of 321234427 is about 684.8687670171.

The spelling of 321234427 in words is "three hundred twenty-one million, two hundred thirty-four thousand, four hundred twenty-seven".