321145402667 has 2 divisors, whose sum is σ = 321145402668. Its totient is φ = 321145402666.

The previous prime is 321145402651. The next prime is 321145402709. The reversal of 321145402667 is 766204541123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321145402667 - 2⁴ = 321145402651 is a prime.

It is not a weakly prime, because it can be changed into another prime (321145402637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160572701333 + 160572701334.

It is an arithmetic number, because the mean of its divisors is an integer number (160572701334).

Almost surely, 2^321145402667 is an apocalyptic number.

321145402667 is a deficient number, since it is larger than the sum of its proper divisors (1).

321145402667 is an equidigital number, since it uses as much as digits as its factorization.

321145402667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 321145402667 in words is "three hundred twenty-one billion, one hundred forty-five million, four hundred two thousand, six hundred sixty-seven".