1321023022339 has 2 divisors, whose sum is σ = 1321023022340. Its totient is φ = 1321023022338.

The previous prime is 1321023022223. The next prime is 1321023022343. The reversal of 1321023022339 is 9332203201231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1321023022339 - 2²⁵ = 1320989467907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321023022339.

It is not a weakly prime, because it can be changed into another prime (1321023622339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660511511169 + 660511511170.

It is an arithmetic number, because the mean of its divisors is an integer number (660511511170).

Almost surely, 2^{1321023022339} is an apocalyptic number.

1321023022339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321023022339 is an equidigital number, since it uses as much as digits as its factorization.

1321023022339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 1321023022339 in words is "one trillion, three hundred twenty-one billion, twenty-three million, twenty-two thousand, three hundred thirty-nine".