21313112333 has 8 divisors (see below), whose sum is σ = 21495960000. Its totient is φ = 21131022528.

The previous prime is 21313112329. The next prime is 21313112371. The reversal of 21313112333 is 33321131312.

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

It is a cyclic number.

It is not a de Polignac number, because 21313112333 - 2² = 21313112329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21313112299 and 21313112308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313102333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 132908 + ... + 245541.

It is an arithmetic number, because the mean of its divisors is an integer number (2686995000).

Almost surely, 2^21313112333 is an apocalyptic number.

It is an amenable number.

21313112333 is a deficient number, since it is larger than the sum of its proper divisors (182847667).

21313112333 is a wasteful number, since it uses less digits than its factorization.

21313112333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378931.

The product of its digits is 972, while the sum is 23.

Adding to 21313112333 its reverse (33321131312), we get a palindrome (54634243645).

The spelling of 21313112333 in words is "twenty-one billion, three hundred thirteen million, one hundred twelve thousand, three hundred thirty-three".