1423343021 has 8 divisors (see below), whose sum is σ = 1472544000. Its totient is φ = 1374347520.

The previous prime is 1423343011. The next prime is 1423343027. The reversal of 1423343021 is 1203433241.

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

It is a cyclic number.

It is not a de Polignac number, because 1423343021 - 2¹⁸ = 1423080877 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 (1423343027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37211 + ... + 65048.

It is an arithmetic number, because the mean of its divisors is an integer number (184068000).

Almost surely, 2^1423343021 is an apocalyptic number.

It is an amenable number.

1423343021 is a deficient number, since it is larger than the sum of its proper divisors (49200979).

1423343021 is a wasteful number, since it uses less digits than its factorization.

1423343021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102739.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1423343021 is about 37727.2185696216. The cubic root of 1423343021 is about 1124.8722214709.

Adding to 1423343021 its reverse (1203433241), we get a palindrome (2626776262).

The spelling of 1423343021 in words is "one billion, four hundred twenty-three million, three hundred forty-three thousand, twenty-one".