213021030333 has 16 divisors (see below), whose sum is σ = 284438002496. Its totient is φ = 141809149440.

The previous prime is 213021030289. The next prime is 213021030337. The reversal of 213021030333 is 333030120312.

It is not a de Polignac number, because 213021030333 - 2⁸ = 213021030077 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 (213021030337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9133635 + ... + 9156927.

It is an arithmetic number, because the mean of its divisors is an integer number (17777375156).

Almost surely, 2^213021030333 is an apocalyptic number.

It is an amenable number.

213021030333 is a deficient number, since it is larger than the sum of its proper divisors (71416972163).

213021030333 is a wasteful number, since it uses less digits than its factorization.

213021030333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27564.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 213021030333 its reverse (333030120312), we get a palindrome (546051150645).

The spelling of 213021030333 in words is "two hundred thirteen billion, twenty-one million, thirty thousand, three hundred thirty-three".