1421143323 has 32 divisors (see below), whose sum is σ = 2114672640. Its totient is φ = 845095680.

The previous prime is 1421143309. The next prime is 1421143363. The reversal of 1421143323 is 3233411241.

It is a happy number.

It is not a de Polignac number, because 1421143323 - 2⁴ = 1421143307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421143293 and 1421143302.

It is not an unprimeable number, because it can be changed into a prime (1421143303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54511 + ... + 76247.

It is an arithmetic number, because the mean of its divisors is an integer number (66083520).

Almost surely, 2^1421143323 is an apocalyptic number.

1421143323 is a deficient number, since it is larger than the sum of its proper divisors (693529317).

1421143323 is a wasteful number, since it uses less digits than its factorization.

1421143323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21827.

The product of its digits is 1728, while the sum is 24.

The square root of 1421143323 is about 37698.0546315059. The cubic root of 1421143323 is about 1124.2924467417.

Adding to 1421143323 its reverse (3233411241), we get a palindrome (4654554564).

The spelling of 1421143323 in words is "one billion, four hundred twenty-one million, one hundred forty-three thousand, three hundred twenty-three".