1323340042655 has 4 divisors (see below), whose sum is σ = 1588008051192. Its totient is φ = 1058672034120.

The previous prime is 1323340042649. The next prime is 1323340042669. The reversal of 1323340042655 is 5562400433231.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1323340042655 - 2¹⁰ = 1323340041631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132334004261 + ... + 132334004270.

It is an arithmetic number, because the mean of its divisors is an integer number (397002012798).

Almost surely, 2^{1323340042655} is an apocalyptic number.

1323340042655 is a deficient number, since it is larger than the sum of its proper divisors (264668008537).

1323340042655 is an equidigital number, since it uses as much as digits as its factorization.

1323340042655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264668008536.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 1323340042655 its reverse (5562400433231), we get a palindrome (6885740475886).

The spelling of 1323340042655 in words is "one trillion, three hundred twenty-three billion, three hundred forty million, forty-two thousand, six hundred fifty-five".