1223344567997 has 2 divisors, whose sum is σ = 1223344567998. Its totient is φ = 1223344567996.

The previous prime is 1223344567931. The next prime is 1223344567999. The reversal of 1223344567997 is 7997654433221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 724250358841 + 499094209156 = 851029^2 + 706466^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223344567997 - 2⁸ = 1223344567741 is a prime.

Together with 1223344567999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223344567999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611672283998 + 611672283999.

It is an arithmetic number, because the mean of its divisors is an integer number (611672283999).

Almost surely, 2^{1223344567997} is an apocalyptic number.

It is an amenable number.

1223344567997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223344567997 is an equidigital number, since it uses as much as digits as its factorization.

1223344567997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68584320, while the sum is 62.

The spelling of 1223344567997 in words is "one trillion, two hundred twenty-three billion, three hundred forty-four million, five hundred sixty-seven thousand, nine hundred ninety-seven".