1323247605653 has 2 divisors, whose sum is σ = 1323247605654. Its totient is φ = 1323247605652.

The previous prime is 1323247605611. The next prime is 1323247605679. The reversal of 1323247605653 is 3565067423231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 887407332529 + 435840273124 = 942023^2 + 660182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323247605653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1323247605598 and 1323247605607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323247605683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661623802826 + 661623802827.

It is an arithmetic number, because the mean of its divisors is an integer number (661623802827).

Almost surely, 2^{1323247605653} is an apocalyptic number.

It is an amenable number.

1323247605653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323247605653 is an equidigital number, since it uses as much as digits as its factorization.

1323247605653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 47.

The spelling of 1323247605653 in words is "one trillion, three hundred twenty-three billion, two hundred forty-seven million, six hundred five thousand, six hundred fifty-three".