1323213142 has 8 divisors (see below), whose sum is σ = 1987138296. Its totient is φ = 660833712.

The previous prime is 1323213109. The next prime is 1323213169. The reversal of 1323213142 is 2413123231.

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

It is a congruent number.

It is an unprimeable number.

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, 384288 + ... + 387715.

It is an arithmetic number, because the mean of its divisors is an integer number (248392287).

Almost surely, 2^1323213142 is an apocalyptic number.

1323213142 is a deficient number, since it is larger than the sum of its proper divisors (663925154).

1323213142 is an equidigital number, since it uses as much as digits as its factorization.

1323213142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772862.

The product of its digits is 864, while the sum is 22.

The square root of 1323213142 is about 36375.9967835934. The cubic root of 1323213142 is about 1097.8506631094.

Adding to 1323213142 its reverse (2413123231), we get a palindrome (3736336373).

The spelling of 1323213142 in words is "one billion, three hundred twenty-three million, two hundred thirteen thousand, one hundred forty-two".