1423213423 has 4 divisors (see below), whose sum is σ = 1428883848. Its totient is φ = 1417543000.

The previous prime is 1423213409. The next prime is 1423213447. The reversal of 1423213423 is 3243123241.

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 1423213423 - 2²¹ = 1421116271 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 (1423213453) 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, 2834836 + ... + 2835337.

It is an arithmetic number, because the mean of its divisors is an integer number (357220962).

Almost surely, 2^1423213423 is an apocalyptic number.

1423213423 is a deficient number, since it is larger than the sum of its proper divisors (5670425).

1423213423 is an equidigital number, since it uses as much as digits as its factorization.

1423213423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5670424.

The product of its digits is 3456, while the sum is 25.

The square root of 1423213423 is about 37725.5009642019. The cubic root of 1423213423 is about 1124.8380798731.

Adding to 1423213423 its reverse (3243123241), we get a palindrome (4666336664).

The spelling of 1423213423 in words is "one billion, four hundred twenty-three million, two hundred thirteen thousand, four hundred twenty-three".