21322113324312 has 64 divisors (see below), whose sum is σ = 54060535814400. Its totient is φ = 7006687345280.

The previous prime is 21322113324271. The next prime is 21322113324349. The reversal of 21322113324312 is 21342331122312.

It is a super-2 number, since 2×21322113324312² (a number of 27 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 21322113324312.

It is a congruent number.

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, 20323114 + ... + 21346502.

It is an arithmetic number, because the mean of its divisors is an integer number (844695872100).

Almost surely, 2^{21322113324312} is an apocalyptic number.

It is an amenable number.

21322113324312 is an abundant number, since it is smaller than the sum of its proper divisors (32738422490088).

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

21322113324312 is a wasteful number, since it uses less digits than its factorization.

21322113324312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035696 (or 1035692 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

Adding to 21322113324312 its reverse (21342331122312), we get a palindrome (42664444446624).

The spelling of 21322113324312 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred thirteen million, three hundred twenty-four thousand, three hundred twelve".