1323340042669 has 2 divisors, whose sum is σ = 1323340042670. Its totient is φ = 1323340042668.

The previous prime is 1323340042649. The next prime is 1323340042679. The reversal of 1323340042669 is 9662400433231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1208834280900 + 114505761769 = 1099470^2 + 338387^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323340042669 - 2²³ = 1323331654061 is a prime.

It is a super-2 number, since 2×1323340042669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323340042649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661670021334 + 661670021335.

It is an arithmetic number, because the mean of its divisors is an integer number (661670021335).

Almost surely, 2^{1323340042669} is an apocalyptic number.

It is an amenable number.

1323340042669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323340042669 is an equidigital number, since it uses as much as digits as its factorization.

1323340042669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 43.

The spelling of 1323340042669 in words is "one trillion, three hundred twenty-three billion, three hundred forty million, forty-two thousand, six hundred sixty-nine".