1320564500429 has 2 divisors, whose sum is σ = 1320564500430. Its totient is φ = 1320564500428.

The previous prime is 1320564500413. The next prime is 1320564500483. The reversal of 1320564500429 is 9240054650231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 745131504100 + 575432996329 = 863210^2 + 758573^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320564500429 - 2⁴ = 1320564500413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320564500929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660282250214 + 660282250215.

It is an arithmetic number, because the mean of its divisors is an integer number (660282250215).

Almost surely, 2^{1320564500429} is an apocalyptic number.

It is an amenable number.

1320564500429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320564500429 is an equidigital number, since it uses as much as digits as its factorization.

1320564500429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1320564500429 in words is "one trillion, three hundred twenty billion, five hundred sixty-four million, five hundred thousand, four hundred twenty-nine".