21033000213 has 8 divisors (see below), whose sum is σ = 28248701568. Its totient is φ = 13919649504.

The previous prime is 21033000139. The next prime is 21033000217. The reversal of 21033000213 is 31200033012.

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

It is not a de Polignac number, because 21033000213 - 2¹⁰ = 21032999189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21033000192 and 21033000201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033000217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25587181 + ... + 25588002.

It is an arithmetic number, because the mean of its divisors is an integer number (3531087696).

Almost surely, 2^21033000213 is an apocalyptic number.

It is an amenable number.

21033000213 is a deficient number, since it is larger than the sum of its proper divisors (7215701355).

21033000213 is a wasteful number, since it uses less digits than its factorization.

21033000213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51175323.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21033000213 its reverse (31200033012), we get a palindrome (52233033225).

The spelling of 21033000213 in words is "twenty-one billion, thirty-three million, two hundred thirteen", and thus it is an aban number.