1320022071391 has 2 divisors, whose sum is σ = 1320022071392. Its totient is φ = 1320022071390.

The previous prime is 1320022071383. The next prime is 1320022071421. The reversal of 1320022071391 is 1931702200231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320022071391 - 2³ = 1320022071383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320022071191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660011035695 + 660011035696.

It is an arithmetic number, because the mean of its divisors is an integer number (660011035696).

Almost surely, 2^{1320022071391} is an apocalyptic number.

1320022071391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320022071391 is an equidigital number, since it uses as much as digits as its factorization.

1320022071391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 1320022071391 in words is "one trillion, three hundred twenty billion, twenty-two million, seventy-one thousand, three hundred ninety-one".