1320144423 has 16 divisors (see below), whose sum is σ = 1946826336. Its totient is φ = 790439040.

The previous prime is 1320144407. The next prime is 1320144451. The reversal of 1320144423 is 3244410231.

It is not a de Polignac number, because 1320144423 - 2⁴ = 1320144407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320144393 and 1320144402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320144403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455988 + ... + 458873.

It is an arithmetic number, because the mean of its divisors is an integer number (121676646).

Almost surely, 2^1320144423 is an apocalyptic number.

1320144423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1320144423 is a deficient number, since it is larger than the sum of its proper divisors (626681913).

1320144423 is a wasteful number, since it uses less digits than its factorization.

1320144423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914914.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1320144423 is about 36333.7917509307. The cubic root of 1320144423 is about 1097.0013157052.

Adding to 1320144423 its reverse (3244410231), we get a palindrome (4564554654).

The spelling of 1320144423 in words is "one billion, three hundred twenty million, one hundred forty-four thousand, four hundred twenty-three".