1209993713393 has 2 divisors, whose sum is σ = 1209993713394. Its totient is φ = 1209993713392.

The previous prime is 1209993713389. The next prime is 1209993713419. The reversal of 1209993713393 is 3933173999021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194664302049 + 15329411344 = 1093007^2 + 123812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1209993713393 - 2² = 1209993713389 is a prime.

It is not a weakly prime, because it can be changed into another prime (1209993713363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604996856696 + 604996856697.

It is an arithmetic number, because the mean of its divisors is an integer number (604996856697).

Almost surely, 2^{1209993713393} is an apocalyptic number.

It is an amenable number.

1209993713393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1209993713393 is an equidigital number, since it uses as much as digits as its factorization.

1209993713393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7440174, while the sum is 59.

The spelling of 1209993713393 in words is "one trillion, two hundred nine billion, nine hundred ninety-three million, seven hundred thirteen thousand, three hundred ninety-three".