321142440067 has 2 divisors, whose sum is σ = 321142440068. Its totient is φ = 321142440066.

The previous prime is 321142440061. The next prime is 321142440079. The reversal of 321142440067 is 760044241123.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321142440067 is a prime.

It is not a weakly prime, because it can be changed into another prime (321142440061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160571220033 + 160571220034.

It is an arithmetic number, because the mean of its divisors is an integer number (160571220034).

Almost surely, 2^321142440067 is an apocalyptic number.

321142440067 is a deficient number, since it is larger than the sum of its proper divisors (1).

321142440067 is an equidigital number, since it uses as much as digits as its factorization.

321142440067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 321142440067 in words is "three hundred twenty-one billion, one hundred forty-two million, four hundred forty thousand, sixty-seven".