1323220132255 has 48 divisors (see below), whose sum is σ = 1850345856000. Its totient is φ = 905761889088.

The previous prime is 1323220132187. The next prime is 1323220132259. The reversal of 1323220132255 is 5522310223231.

It is not a de Polignac number, because 1323220132255 - 2¹⁹ = 1323219607967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323220132259) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 546106974 + ... + 546109396.

It is an arithmetic number, because the mean of its divisors is an integer number (38548872000).

Almost surely, 2^{1323220132255} is an apocalyptic number.

1323220132255 is a deficient number, since it is larger than the sum of its proper divisors (527125723745).

1323220132255 is a wasteful number, since it uses less digits than its factorization.

1323220132255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428 (or 5421 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 1323220132255 its reverse (5522310223231), we get a palindrome (6845530355486).

The spelling of 1323220132255 in words is "one trillion, three hundred twenty-three billion, two hundred twenty million, one hundred thirty-two thousand, two hundred fifty-five".