21311112322 has 8 divisors (see below), whose sum is σ = 32016385296. Its totient is φ = 10638983892.

The previous prime is 21311112299. The next prime is 21311112341. The reversal of 21311112322 is 22321111312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21311112322.

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 3 ways as a sum of consecutive naturals, for example, 8284528 + ... + 8287099.

It is an arithmetic number, because the mean of its divisors is an integer number (4002048162).

Almost surely, 2^21311112322 is an apocalyptic number.

21311112322 is a deficient number, since it is larger than the sum of its proper divisors (10705272974).

21311112322 is a wasteful number, since it uses less digits than its factorization.

21311112322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16572272.

The product of its digits is 144, while the sum is 19.

Adding to 21311112322 its reverse (22321111312), we get a palindrome (43632223634).

The spelling of 21311112322 in words is "twenty-one billion, three hundred eleven million, one hundred twelve thousand, three hundred twenty-two".