21313112214 has 16 divisors (see below), whose sum is σ = 42864361920. Its totient is φ = 7064681160.

The previous prime is 21313112201. The next prime is 21313112267. The reversal of 21313112214 is 41221131312.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 9921232 + ... + 9923379.

It is an arithmetic number, because the mean of its divisors is an integer number (2679022620).

Almost surely, 2^21313112214 is an apocalyptic number.

21313112214 is an abundant number, since it is smaller than the sum of its proper divisors (21551249706).

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

21313112214 is a wasteful number, since it uses less digits than its factorization.

21313112214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19844795.

The product of its digits is 288, while the sum is 21.

Adding to 21313112214 its reverse (41221131312), we get a palindrome (62534243526).

The spelling of 21313112214 in words is "twenty-one billion, three hundred thirteen million, one hundred twelve thousand, two hundred fourteen".