1363223311997 has 2 divisors, whose sum is σ = 1363223311998. Its totient is φ = 1363223311996.

The previous prime is 1363223311991. The next prime is 1363223312021. The reversal of 1363223311997 is 7991133223631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 805235227801 + 557988084196 = 897349^2 + 746986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1363223311997 - 2³⁸ = 1088345405053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1363223311991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681611655998 + 681611655999.

It is an arithmetic number, because the mean of its divisors is an integer number (681611655999).

Almost surely, 2^{1363223311997} is an apocalyptic number.

It is an amenable number.

1363223311997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363223311997 is an equidigital number, since it uses as much as digits as its factorization.

1363223311997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102248, while the sum is 50.

The spelling of 1363223311997 in words is "one trillion, three hundred sixty-three billion, two hundred twenty-three million, three hundred eleven thousand, nine hundred ninety-seven".