1142441321 has 12 divisors (see below), whose sum is σ = 1348801488. Its totient is φ = 964617192.

The previous prime is 1142441231. The next prime is 1142441323. The reversal of 1142441321 is 1231442411.

It is not a de Polignac number, because 1142441321 - 2¹⁴ = 1142424937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1142441323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170711 + ... + 177276.

It is an arithmetic number, because the mean of its divisors is an integer number (112400124).

Almost surely, 2^1142441321 is an apocalyptic number.

It is an amenable number.

1142441321 is a deficient number, since it is larger than the sum of its proper divisors (206360167).

1142441321 is an equidigital number, since it uses as much as digits as its factorization.

1142441321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348068 (or 348061 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 1142441321 is about 33800.0195414145. The cubic root of 1142441321 is about 1045.3891001596.

Adding to 1142441321 its reverse (1231442411), we get a palindrome (2373883732).

The spelling of 1142441321 in words is "one billion, one hundred forty-two million, four hundred forty-one thousand, three hundred twenty-one".