1323121442 has 8 divisors (see below), whose sum is σ = 1985634000. Its totient is φ = 661243444.

The previous prime is 1323121439. The next prime is 1323121451. The reversal of 1323121442 is 2441213231.

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

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, 153392 + ... + 161787.

It is an arithmetic number, because the mean of its divisors is an integer number (248204250).

Almost surely, 2^1323121442 is an apocalyptic number.

1323121442 is a deficient number, since it is larger than the sum of its proper divisors (662512558).

1323121442 is a wasteful number, since it uses less digits than its factorization.

1323121442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317280.

The product of its digits is 1152, while the sum is 23.

The square root of 1323121442 is about 36374.7363151955. The cubic root of 1323121442 is about 1097.8253018056.

Adding to 1323121442 its reverse (2441213231), we get a palindrome (3764334673).

The spelling of 1323121442 in words is "one billion, three hundred twenty-three million, one hundred twenty-one thousand, four hundred forty-two".