21233034213 has 4 divisors (see below), whose sum is σ = 28310712288. Its totient is φ = 14155356140.

The previous prime is 21233034169. The next prime is 21233034217. The reversal of 21233034213 is 31243033212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21233034213 - 2¹³ = 21233026021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233034217) 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 3 ways as a sum of consecutive naturals, for example, 3538839033 + ... + 3538839038.

It is an arithmetic number, because the mean of its divisors is an integer number (7077678072).

Almost surely, 2^21233034213 is an apocalyptic number.

It is an amenable number.

21233034213 is a deficient number, since it is larger than the sum of its proper divisors (7077678075).

21233034213 is an equidigital number, since it uses as much as digits as its factorization.

21233034213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077678074.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21233034213 its reverse (31243033212), we get a palindrome (52476067425).

The spelling of 21233034213 in words is "twenty-one billion, two hundred thirty-three million, thirty-four thousand, two hundred thirteen".