21233111331313 has 8 divisors (see below), whose sum is σ = 24451652744640. Its totient is φ = 18060879866640.

The previous prime is 21233111331301. The next prime is 21233111331329. The reversal of 21233111331313 is 31313311133212.

It is a happy number.

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 21233111331313 - 2¹⁷ = 21233111200241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233111331373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11577486178 + ... + 11577488011.

It is an arithmetic number, because the mean of its divisors is an integer number (3056456593080).

Almost surely, 2^{21233111331313} is an apocalyptic number.

It is an amenable number.

21233111331313 is a deficient number, since it is larger than the sum of its proper divisors (3218541413327).

21233111331313 is a wasteful number, since it uses less digits than its factorization.

21233111331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23154974327.

The product of its digits is 2916, while the sum is 28.

Adding to 21233111331313 its reverse (31313311133212), we get a palindrome (52546422464525).

The spelling of 21233111331313 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred eleven million, three hundred thirty-one thousand, three hundred thirteen".