21311102102322 has 32 divisors (see below), whose sum is σ = 42729830492544. Its totient is φ = 7085780726400.

The previous prime is 21311102102309. The next prime is 21311102102347. The reversal of 21311102102322 is 22320120111312.

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, 2590803 + ... + 7023849.

It is an arithmetic number, because the mean of its divisors is an integer number (1335307202892).

Almost surely, 2^{21311102102322} is an apocalyptic number.

21311102102322 is an abundant number, since it is smaller than the sum of its proper divisors (21418728390222).

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

21311102102322 is a wasteful number, since it uses less digits than its factorization.

21311102102322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435074.

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

Adding to 21311102102322 its reverse (22320120111312), we get a palindrome (43631222213634).

The spelling of 21311102102322 in words is "twenty-one trillion, three hundred eleven billion, one hundred two million, one hundred two thousand, three hundred twenty-two".