21213301314 has 32 divisors (see below), whose sum is σ = 42646895424. Its totient is φ = 7034480640.

The previous prime is 21213301273. The next prime is 21213301349. The reversal of 21213301314 is 41310331212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905529 + ... + 928659.

It is an arithmetic number, because the mean of its divisors is an integer number (1332715482).

Almost surely, 2^21213301314 is an apocalyptic number.

21213301314 is an abundant number, since it is smaller than the sum of its proper divisors (21433594110).

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

21213301314 is a wasteful number, since it uses less digits than its factorization.

21213301314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23922.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21213301314 its reverse (41310331212), we get a palindrome (62523632526).

The spelling of 21213301314 in words is "twenty-one billion, two hundred thirteen million, three hundred one thousand, three hundred fourteen".