1323315142 has 4 divisors (see below), whose sum is σ = 1984972716. Its totient is φ = 661657570.

The previous prime is 1323315137. The next prime is 1323315157. The reversal of 1323315142 is 2415133231.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330828784 + ... + 330828787.

It is an arithmetic number, because the mean of its divisors is an integer number (496243179).

Almost surely, 2^1323315142 is an apocalyptic number.

1323315142 is a deficient number, since it is larger than the sum of its proper divisors (661657574).

1323315142 is an equidigital number, since it uses as much as digits as its factorization.

1323315142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661657573.

The product of its digits is 2160, while the sum is 25.

The square root of 1323315142 is about 36377.3987800117. The cubic root of 1323315142 is about 1097.8788716892.

Adding to 1323315142 its reverse (2415133231), we get a palindrome (3738448373).

The spelling of 1323315142 in words is "one billion, three hundred twenty-three million, three hundred fifteen thousand, one hundred forty-two".