21313322213312 has 28 divisors (see below), whose sum is σ = 42469116012576. Its totient is φ = 10612442588160.

The previous prime is 21313322213237. The next prime is 21313322213317. The reversal of 21313322213312 is 21331222331312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313322213317) 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, 690898808 + ... + 690929655.

Almost surely, 2^{21313322213312} is an apocalyptic number.

It is an amenable number.

21313322213312 is a deficient number, since it is larger than the sum of its proper divisors (21155793799264).

21313322213312 is a wasteful number, since it uses less digits than its factorization.

21313322213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381828716 (or 1381828706 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

Adding to 21313322213312 its reverse (21331222331312), we get a palindrome (42644544544624).

The spelling of 21313322213312 in words is "twenty-one trillion, three hundred thirteen billion, three hundred twenty-two million, two hundred thirteen thousand, three hundred twelve".