21002321314 has 8 divisors (see below), whose sum is σ = 33926826780. Its totient is φ = 9693379056.

The previous prime is 21002321309. The next prime is 21002321321. The reversal of 21002321314 is 41312320012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20881695025 + 120626289 = 144505^2 + 10983^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21002321291 and 21002321300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403890769 + ... + 403890820.

Almost surely, 2^21002321314 is an apocalyptic number.

21002321314 is a deficient number, since it is larger than the sum of its proper divisors (12924505466).

21002321314 is a wasteful number, since it uses less digits than its factorization.

21002321314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807781604.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21002321314 its reverse (41312320012), we get a palindrome (62314641326).

The spelling of 21002321314 in words is "twenty-one billion, two million, three hundred twenty-one thousand, three hundred fourteen".