1421420223 has 8 divisors (see below), whose sum is σ = 1898291200. Its totient is φ = 946081368.

The previous prime is 1421420183. The next prime is 1421420227. The reversal of 1421420223 is 3220241241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1421420223 - 2¹⁷ = 1421289151 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 1421420223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421420227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380863 + ... + 384576.

It is an arithmetic number, because the mean of its divisors is an integer number (237286400).

Almost surely, 2^1421420223 is an apocalyptic number.

1421420223 is a deficient number, since it is larger than the sum of its proper divisors (476870977).

1421420223 is an equidigital number, since it uses as much as digits as its factorization.

1421420223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766061.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1421420223 is about 37701.7270559321. The cubic root of 1421420223 is about 1124.3654622161.

Adding to 1421420223 its reverse (3220241241), we get a palindrome (4641661464).

The spelling of 1421420223 in words is "one billion, four hundred twenty-one million, four hundred twenty thousand, two hundred twenty-three".