21233000213 has 4 divisors (see below), whose sum is σ = 22350526560. Its totient is φ = 20115473868.

The previous prime is 21233000207. The next prime is 21233000279. The reversal of 21233000213 is 31200033212.

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 21233000213 - 2⁴ = 21233000197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21233000191 and 21233000200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233002213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558763145 + ... + 558763182.

It is an arithmetic number, because the mean of its divisors is an integer number (5587631640).

Almost surely, 2^21233000213 is an apocalyptic number.

It is an amenable number.

21233000213 is a deficient number, since it is larger than the sum of its proper divisors (1117526347).

21233000213 is a wasteful number, since it uses less digits than its factorization.

21233000213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117526346.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21233000213 its reverse (31200033212), we get a palindrome (52433033425).

The spelling of 21233000213 in words is "twenty-one billion, two hundred thirty-three million, two hundred thirteen", and thus it is an aban number.