21022320314 has 4 divisors (see below), whose sum is σ = 31533480474. Its totient is φ = 10511160156.

The previous prime is 21022320299. The next prime is 21022320337. The reversal of 21022320314 is 41302322012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11939277289 + 9083043025 = 109267^2 + 95305^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5255580077 + ... + 5255580080.

Almost surely, 2^21022320314 is an apocalyptic number.

21022320314 is a deficient number, since it is larger than the sum of its proper divisors (10511160160).

21022320314 is a wasteful number, since it uses less digits than its factorization.

21022320314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10511160159.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21022320314 its reverse (41302322012), we get a palindrome (62324642326).

The spelling of 21022320314 in words is "twenty-one billion, twenty-two million, three hundred twenty thousand, three hundred fourteen".