21021304314 has 8 divisors (see below), whose sum is σ = 42042608640. Its totient is φ = 7007101436.

The previous prime is 21021304313. The next prime is 21021304331. The reversal of 21021304314 is 41340312012.

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

21021304314 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21021304313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751775354 + ... + 1751775365.

It is an arithmetic number, because the mean of its divisors is an integer number (5255326080).

Almost surely, 2^21021304314 is an apocalyptic number.

21021304314 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21021304314 is a wasteful number, since it uses less digits than its factorization.

21021304314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503550724.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21021304314 its reverse (41340312012), we get a palindrome (62361616326).

The spelling of 21021304314 in words is "twenty-one billion, twenty-one million, three hundred four thousand, three hundred fourteen".