1423020323 has 4 divisors (see below), whose sum is σ = 1431246048. Its totient is φ = 1414794600.

The previous prime is 1423020283. The next prime is 1423020329. The reversal of 1423020323 is 3230203241.

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 1423020323 - 2²⁸ = 1154584867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423020295 and 1423020304.

It is not an unprimeable number, because it can be changed into a prime (1423020329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4112603 + ... + 4112948.

It is an arithmetic number, because the mean of its divisors is an integer number (357811512).

Almost surely, 2^1423020323 is an apocalyptic number.

1423020323 is a deficient number, since it is larger than the sum of its proper divisors (8225725).

1423020323 is an equidigital number, since it uses as much as digits as its factorization.

1423020323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8225724.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1423020323 is about 37722.9416005698. The cubic root of 1423020323 is about 1124.7872053160.

Adding to 1423020323 its reverse (3230203241), we get a palindrome (4653223564).

It can be divided in two parts, 1 and 423020323, that added together give a palindrome (423020324).

The spelling of 1423020323 in words is "one billion, four hundred twenty-three million, twenty thousand, three hundred twenty-three".