1423113421 has 4 divisors (see below), whose sum is σ = 1443157344. Its totient is φ = 1403069500.

The previous prime is 1423113413. The next prime is 1423113427. The reversal of 1423113421 is 1243113241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1423113421 - 2³ = 1423113413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423113392 and 1423113401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423113427) 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, 10021855 + ... + 10021996.

It is an arithmetic number, because the mean of its divisors is an integer number (360789336).

Almost surely, 2^1423113421 is an apocalyptic number.

It is an amenable number.

1423113421 is a deficient number, since it is larger than the sum of its proper divisors (20043923).

1423113421 is an equidigital number, since it uses as much as digits as its factorization.

1423113421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20043922.

The product of its digits is 576, while the sum is 22.

The square root of 1423113421 is about 37724.1755509647. The cubic root of 1423113421 is about 1124.8117336974.

Adding to 1423113421 its reverse (1243113241), we get a palindrome (2666226662).

The spelling of 1423113421 in words is "one billion, four hundred twenty-three million, one hundred thirteen thousand, four hundred twenty-one".