21311102303322 has 128 divisors (see below), whose sum is σ = 46952057327616. Its totient is φ = 6408092101632.

The previous prime is 21311102303273. The next prime is 21311102303347. The reversal of 21311102303322 is 22330320111312.

It is a junction number, because it is equal to n+sod(n) for n = 21311102303292 and 21311102303301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3000292423 + ... + 3000299525.

It is an arithmetic number, because the mean of its divisors is an integer number (366812947872).

Almost surely, 2^{21311102303322} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21311102303322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23476028663808).

21311102303322 is an abundant number, since it is smaller than the sum of its proper divisors (25640955024294).

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

21311102303322 is a wasteful number, since it uses less digits than its factorization.

21311102303322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9944.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21311102303322 its reverse (22330320111312), we get a palindrome (43641422414634).

The spelling of 21311102303322 in words is "twenty-one trillion, three hundred eleven billion, one hundred two million, three hundred three thousand, three hundred twenty-two".