21113233232311 has 8 divisors (see below), whose sum is σ = 23124381493248. Its totient is φ = 19117378875000.

The previous prime is 21113233232293. The next prime is 21113233232317. The reversal of 21113233232311 is 11323233231112.

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 21113233232311 - 2⁹ = 21113233231799 is a prime.

It is a super-3 number, since 3×21113233232311³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21113233232311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113233232317) 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, 3823473015 + ... + 3823478536.

It is an arithmetic number, because the mean of its divisors is an integer number (2890547686656).

Almost surely, 2^{21113233232311} is an apocalyptic number.

21113233232311 is a deficient number, since it is larger than the sum of its proper divisors (2011148260937).

21113233232311 is a wasteful number, since it uses less digits than its factorization.

21113233232311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7646951813.

The product of its digits is 3888, while the sum is 28.

Adding to 21113233232311 its reverse (11323233231112), we get a palindrome (32436466463423).

The spelling of 21113233232311 in words is "twenty-one trillion, one hundred thirteen billion, two hundred thirty-three million, two hundred thirty-two thousand, three hundred eleven".