1342331321 has 4 divisors (see below), whose sum is σ = 1342689012. Its totient is φ = 1341973632.

The previous prime is 1342331231. The next prime is 1342331351. The reversal of 1342331321 is 1231332431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 133726096 + 1208605225 = 11564^2 + 34765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342331321 - 2¹⁸ = 1342069177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342331351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173156 + ... + 180741.

It is an arithmetic number, because the mean of its divisors is an integer number (335672253).

Almost surely, 2^1342331321 is an apocalyptic number.

It is an amenable number.

1342331321 is a deficient number, since it is larger than the sum of its proper divisors (357691).

1342331321 is an equidigital number, since it uses as much as digits as its factorization.

1342331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357690.

The product of its digits is 1296, while the sum is 23.

The square root of 1342331321 is about 36637.8400154813. The cubic root of 1342331321 is about 1103.1127592967.

Adding to 1342331321 its reverse (1231332431), we get a palindrome (2573663752).

It can be divided in two parts, 13423 and 31321, that added together give a palindrome (44744).

The spelling of 1342331321 in words is "one billion, three hundred forty-two million, three hundred thirty-one thousand, three hundred twenty-one".