1423203321 has 16 divisors (see below), whose sum is σ = 1907553024. Its totient is φ = 943840464.

The previous prime is 1423203283. The next prime is 1423203337. The reversal of 1423203321 is 1233023241.

It is not a de Polignac number, because 1423203321 - 2¹⁹ = 1422679033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1423201321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701110 + ... + 703136.

It is an arithmetic number, because the mean of its divisors is an integer number (119222064).

Almost surely, 2^1423203321 is an apocalyptic number.

It is an amenable number.

1423203321 is a deficient number, since it is larger than the sum of its proper divisors (484349703).

1423203321 is a wasteful number, since it uses less digits than its factorization.

1423203321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1423203321 is about 37725.3670757489. The cubic root of 1423203321 is about 1124.8354184917.

Adding to 1423203321 its reverse (1233023241), we get a palindrome (2656226562).

The spelling of 1423203321 in words is "one billion, four hundred twenty-three million, two hundred three thousand, three hundred twenty-one".