1320434323049 has 2 divisors, whose sum is σ = 1320434323050. Its totient is φ = 1320434323048.

The previous prime is 1320434322997. The next prime is 1320434323079. The reversal of 1320434323049 is 9403234340231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 974652690025 + 345781633024 = 987245^2 + 588032^2 .

It is an emirp because it is prime and its reverse (9403234340231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320434323049 - 2²⁰ = 1320433274473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320434323079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660217161524 + 660217161525.

It is an arithmetic number, because the mean of its divisors is an integer number (660217161525).

Almost surely, 2^{1320434323049} is an apocalyptic number.

It is an amenable number.

1320434323049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320434323049 is an equidigital number, since it uses as much as digits as its factorization.

1320434323049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 38.

The spelling of 1320434323049 in words is "one trillion, three hundred twenty billion, four hundred thirty-four million, three hundred twenty-three thousand, forty-nine".