21112330213 has 8 divisors (see below), whose sum is σ = 22872503808. Its totient is φ = 19371606384.

The previous prime is 21112330201. The next prime is 21112330229. The reversal of 21112330213 is 31203321112.

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

It is not a de Polignac number, because 21112330213 - 2³³ = 12522395621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112390213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4860181 + ... + 4864522.

It is an arithmetic number, because the mean of its divisors is an integer number (2859062976).

Almost surely, 2^21112330213 is an apocalyptic number.

It is an amenable number.

21112330213 is a deficient number, since it is larger than the sum of its proper divisors (1760173595).

21112330213 is a wasteful number, since it uses less digits than its factorization.

21112330213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9724883.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21112330213 its reverse (31203321112), we get a palindrome (52315651325).

The spelling of 21112330213 in words is "twenty-one billion, one hundred twelve million, three hundred thirty thousand, two hundred thirteen".