21323443314 has 16 divisors (see below), whose sum is σ = 42805428480. Its totient is φ = 7081390800.

The previous prime is 21323443283. The next prime is 21323443327. The reversal of 21323443314 is 41334432312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6604162 + ... + 6607389.

It is an arithmetic number, because the mean of its divisors is an integer number (2675339280).

Almost surely, 2^21323443314 is an apocalyptic number.

21323443314 is an abundant number, since it is smaller than the sum of its proper divisors (21481985166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21323443314 is a wasteful number, since it uses less digits than its factorization.

21323443314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13211825.

The product of its digits is 20736, while the sum is 30.

Adding to 21323443314 its reverse (41334432312), we get a palindrome (62657875626).

The spelling of 21323443314 in words is "twenty-one billion, three hundred twenty-three million, four hundred forty-three thousand, three hundred fourteen".