1322320054777 has 2 divisors, whose sum is σ = 1322320054778. Its totient is φ = 1322320054776.

The previous prime is 1322320054729. The next prime is 1322320054907. The reversal of 1322320054777 is 7774500232231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1141946567161 + 180373487616 = 1068619^2 + 424704^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322320054777 - 2³¹ = 1320172571129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1322320054717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661160027388 + 661160027389.

It is an arithmetic number, because the mean of its divisors is an integer number (661160027389).

Almost surely, 2^{1322320054777} is an apocalyptic number.

It is an amenable number.

1322320054777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322320054777 is an equidigital number, since it uses as much as digits as its factorization.

1322320054777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493920, while the sum is 43.

The spelling of 1322320054777 in words is "one trillion, three hundred twenty-two billion, three hundred twenty million, fifty-four thousand, seven hundred seventy-seven".