1423300321 has 4 divisors (see below), whose sum is σ = 1423928772. Its totient is φ = 1422671872.

The previous prime is 1423300313. The next prime is 1423300327. The reversal of 1423300321 is 1230033241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1230033241 = 17191 ⋅71551.

It can be written as a sum of positive squares in 2 ways, for example, as 697752225 + 725548096 = 26415^2 + 26936^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423300321 - 2³ = 1423300313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423300327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310816 + ... + 315361.

It is an arithmetic number, because the mean of its divisors is an integer number (355982193).

Almost surely, 2^1423300321 is an apocalyptic number.

It is an amenable number.

1423300321 is a deficient number, since it is larger than the sum of its proper divisors (628451).

1423300321 is an equidigital number, since it uses as much as digits as its factorization.

1423300321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628450.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1423300321 is about 37726.6526609505. The cubic root of 1423300321 is about 1124.8609727127.

Adding to 1423300321 its reverse (1230033241), we get a palindrome (2653333562).

The spelling of 1423300321 in words is "one billion, four hundred twenty-three million, three hundred thousand, three hundred twenty-one".