1323132123 has 4 divisors (see below), whose sum is σ = 1764176168. Its totient is φ = 882088080.

The previous prime is 1323132091. The next prime is 1323132131. The reversal of 1323132123 is 3212313231.

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

It is not a de Polignac number, because 1323132123 - 2⁵ = 1323132091 is a prime.

It is a super-2 number, since 2×1323132123² = 3501357229828974258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323132123.

It is not an unprimeable number, because it can be changed into a prime (1323131123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220522018 + ... + 220522023.

It is an arithmetic number, because the mean of its divisors is an integer number (441044042).

Almost surely, 2^1323132123 is an apocalyptic number.

1323132123 is a deficient number, since it is larger than the sum of its proper divisors (441044045).

1323132123 is an equidigital number, since it uses as much as digits as its factorization.

1323132123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441044044.

The product of its digits is 648, while the sum is 21.

The square root of 1323132123 is about 36374.8831338329. The cubic root of 1323132123 is about 1097.8282558909.

Adding to 1323132123 its reverse (3212313231), we get a palindrome (4535445354).

It can be divided in two parts, 13231 and 32123, that added together give a palindrome (45354).

The spelling of 1323132123 in words is "one billion, three hundred twenty-three million, one hundred thirty-two thousand, one hundred twenty-three".