1421311223 has 4 divisors (see below), whose sum is σ = 1421431200. Its totient is φ = 1421191248.

The previous prime is 1421311159. The next prime is 1421311247. The reversal of 1421311223 is 3221131241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3221131241 = 1201 ⋅2682041.

It is a cyclic number.

It is not a de Polignac number, because 1421311223 - 2⁶ = 1421311159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1421311195 and 1421311204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421311253) 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, 39998 + ... + 66651.

It is an arithmetic number, because the mean of its divisors is an integer number (355357800).

Almost surely, 2^1421311223 is an apocalyptic number.

1421311223 is a deficient number, since it is larger than the sum of its proper divisors (119977).

1421311223 is a wasteful number, since it uses less digits than its factorization.

1421311223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119976.

The product of its digits is 288, while the sum is 20.

The square root of 1421311223 is about 37700.2814710978. The cubic root of 1421311223 is about 1124.3367212507.

Adding to 1421311223 its reverse (3221131241), we get a palindrome (4642442464).

The spelling of 1421311223 in words is "one billion, four hundred twenty-one million, three hundred eleven thousand, two hundred twenty-three".