1323111342 has 32 divisors (see below), whose sum is σ = 3105994752. Its totient is φ = 367814304.

The previous prime is 1323111337. The next prime is 1323111353. The reversal of 1323111342 is 2431113231.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424158 + ... + 427265.

It is an arithmetic number, because the mean of its divisors is an integer number (97062336).

Almost surely, 2^1323111342 is an apocalyptic number.

1323111342 is an abundant number, since it is smaller than the sum of its proper divisors (1782883410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323111342 is a wasteful number, since it uses less digits than its factorization.

1323111342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851472.

The product of its digits is 432, while the sum is 21.

The square root of 1323111342 is about 36374.5974823090. The cubic root of 1323111342 is about 1097.8225083952.

Adding to 1323111342 its reverse (2431113231), we get a palindrome (3754224573).

The spelling of 1323111342 in words is "one billion, three hundred twenty-three million, one hundred eleven thousand, three hundred forty-two".