1442323331 has 2 divisors, whose sum is σ = 1442323332. Its totient is φ = 1442323330.

The previous prime is 1442323319. The next prime is 1442323349. The reversal of 1442323331 is 1333232441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1442323331 - 2¹⁰ = 1442322307 is a prime.

It is a super-2 number, since 2×1442323331² = 4160593182293871122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1442323331.

It is not a weakly prime, because it can be changed into another prime (1442323301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721161665 + 721161666.

It is an arithmetic number, because the mean of its divisors is an integer number (721161666).

Almost surely, 2^1442323331 is an apocalyptic number.

1442323331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442323331 is an equidigital number, since it uses as much as digits as its factorization.

1442323331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 26.

The square root of 1442323331 is about 37977.9321580309. The cubic root of 1442323331 is about 1129.8502244907.

Adding to 1442323331 its reverse (1333232441), we get a palindrome (2775555772).

The spelling of 1442323331 in words is "one billion, four hundred forty-two million, three hundred twenty-three thousand, three hundred thirty-one".