1144321423 has 4 divisors (see below), whose sum is σ = 1307795920. Its totient is φ = 980846928.

The previous prime is 1144321397. The next prime is 1144321433. The reversal of 1144321423 is 3241234411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144321423 - 2¹⁷ = 1144190351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144321433) 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, 81737238 + ... + 81737251.

It is an arithmetic number, because the mean of its divisors is an integer number (326948980).

Almost surely, 2^1144321423 is an apocalyptic number.

1144321423 is a deficient number, since it is larger than the sum of its proper divisors (163474497).

1144321423 is an equidigital number, since it uses as much as digits as its factorization.

1144321423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163474496.

The product of its digits is 2304, while the sum is 25.

The square root of 1144321423 is about 33827.8202519760. The cubic root of 1144321423 is about 1045.9622473082.

Adding to 1144321423 its reverse (3241234411), we get a palindrome (4385555834).

The spelling of 1144321423 in words is "one billion, one hundred forty-four million, three hundred twenty-one thousand, four hundred twenty-three".