1323123442 has 8 divisors (see below), whose sum is σ = 2009808000. Its totient is φ = 653187444.

The previous prime is 1323123433. The next prime is 1323123443. The reversal of 1323123442 is 2443213231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1323123443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4186942 + ... + 4187257.

It is an arithmetic number, because the mean of its divisors is an integer number (251226000).

Almost surely, 2^1323123442 is an apocalyptic number.

1323123442 is a deficient number, since it is larger than the sum of its proper divisors (686684558).

1323123442 is an equidigital number, since it uses as much as digits as its factorization.

1323123442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374280.

The product of its digits is 3456, while the sum is 25.

The square root of 1323123442 is about 36374.7638067933. The cubic root of 1323123442 is about 1097.8258549545.

Adding to 1323123442 its reverse (2443213231), we get a palindrome (3766336673).

The spelling of 1323123442 in words is "one billion, three hundred twenty-three million, one hundred twenty-three thousand, four hundred forty-two".