1320204423 has 16 divisors (see below), whose sum is σ = 1774239872. Its totient is φ = 873180000.

The previous prime is 1320204421. The next prime is 1320204449. The reversal of 1320204423 is 3244020231.

It is not a de Polignac number, because 1320204423 - 2¹ = 1320204421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320204423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320204421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206373 + ... + 212673.

It is an arithmetic number, because the mean of its divisors is an integer number (110889992).

Almost surely, 2^1320204423 is an apocalyptic number.

1320204423 is a deficient number, since it is larger than the sum of its proper divisors (454035449).

1320204423 is a wasteful number, since it uses less digits than its factorization.

1320204423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1320204423 is about 36334.6174192051. The cubic root of 1320204423 is about 1097.0179348671.

Adding to 1320204423 its reverse (3244020231), we get a palindrome (4564224654).

The spelling of 1320204423 in words is "one billion, three hundred twenty million, two hundred four thousand, four hundred twenty-three".