1320023320579 has 2 divisors, whose sum is σ = 1320023320580. Its totient is φ = 1320023320578.

The previous prime is 1320023320559. The next prime is 1320023320589. The reversal of 1320023320579 is 9750233200231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320023320579 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320023320519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660011660289 + 660011660290.

It is an arithmetic number, because the mean of its divisors is an integer number (660011660290).

Almost surely, 2^{1320023320579} is an apocalyptic number.

1320023320579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320023320579 is an equidigital number, since it uses as much as digits as its factorization.

1320023320579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 37.

The spelling of 1320023320579 in words is "one trillion, three hundred twenty billion, twenty-three million, three hundred twenty thousand, five hundred seventy-nine".