21113011133233 has 8 divisors (see below), whose sum is σ = 21253240941120. Its totient is φ = 20972786701200.

The previous prime is 21113011133209. The next prime is 21113011133299. The reversal of 21113011133233 is 33233111031112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21113011133233 is a prime.

It is a super-2 number, since 2×21113011133233² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21113011133198 and 21113011133207.

It is not an unprimeable number, because it can be changed into a prime (21113011133933) 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, 6696066 + ... + 9330772.

It is an arithmetic number, because the mean of its divisors is an integer number (2656655117640).

Almost surely, 2^{21113011133233} is an apocalyptic number.

It is an amenable number.

21113011133233 is a deficient number, since it is larger than the sum of its proper divisors (140229807887).

21113011133233 is a wasteful number, since it uses less digits than its factorization.

21113011133233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687927.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 21113011133233 its reverse (33233111031112), we get a palindrome (54346122164345).

The spelling of 21113011133233 in words is "twenty-one trillion, one hundred thirteen billion, eleven million, one hundred thirty-three thousand, two hundred thirty-three".