1421385223 has 4 divisors (see below), whose sum is σ = 1421494200. Its totient is φ = 1421276248.

The previous prime is 1421385191. The next prime is 1421385289. The reversal of 1421385223 is 3225831241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3225831241 = 139 ⋅23207419.

It is a cyclic number.

It is not a de Polignac number, because 1421385223 - 2⁵ = 1421385191 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 (1421385293) 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, 31765 + ... + 62062.

It is an arithmetic number, because the mean of its divisors is an integer number (355373550).

Almost surely, 2^1421385223 is an apocalyptic number.

1421385223 is a deficient number, since it is larger than the sum of its proper divisors (108977).

1421385223 is an equidigital number, since it uses as much as digits as its factorization.

1421385223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108976.

The product of its digits is 11520, while the sum is 31.

The square root of 1421385223 is about 37701.2628833571. The cubic root of 1421385223 is about 1124.3562336259.

The spelling of 1421385223 in words is "one billion, four hundred twenty-one million, three hundred eighty-five thousand, two hundred twenty-three".