1321361504339 has 2 divisors, whose sum is σ = 1321361504340. Its totient is φ = 1321361504338.

The previous prime is 1321361504317. The next prime is 1321361504387. The reversal of 1321361504339 is 9334051631231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1321361504339 - 2¹² = 1321361500243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1321361504296 and 1321361504305.

It is not a weakly prime, because it can be changed into another prime (1321361504839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660680752169 + 660680752170.

It is an arithmetic number, because the mean of its divisors is an integer number (660680752170).

Almost surely, 2^{1321361504339} is an apocalyptic number.

1321361504339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321361504339 is an equidigital number, since it uses as much as digits as its factorization.

1321361504339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 41.

The spelling of 1321361504339 in words is "one trillion, three hundred twenty-one billion, three hundred sixty-one million, five hundred four thousand, three hundred thirty-nine".