21113300033 has 8 divisors (see below), whose sum is σ = 24469338240. Its totient is φ = 17842224960.

The previous prime is 21113300009. The next prime is 21113300071. The reversal of 21113300033 is 33000331112.

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

It is not a de Polignac number, because 21113300033 - 2⁶ = 21113299969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21113299984 and 21113300020.

It is not an unprimeable number, because it can be changed into a prime (21113306033) 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, 21240248 + ... + 21241241.

It is an arithmetic number, because the mean of its divisors is an integer number (3058667280).

Almost surely, 2^21113300033 is an apocalyptic number.

It is an amenable number.

21113300033 is a deficient number, since it is larger than the sum of its proper divisors (3356038207).

21113300033 is an equidigital number, since it uses as much as digits as its factorization.

21113300033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42481567.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21113300033 its reverse (33000331112), we get a palindrome (54113631145).

The spelling of 21113300033 in words is "twenty-one billion, one hundred thirteen million, three hundred thousand, thirty-three".