21333330230 has 8 divisors (see below), whose sum is σ = 38399994432. Its totient is φ = 8533332088.

The previous prime is 21333330217. The next prime is 21333330251. The reversal of 21333330230 is 3203333312.

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

It is a super-2 number, since 2×21333330230² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21333330196 and 21333330205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066666502 + ... + 1066666521.

It is an arithmetic number, because the mean of its divisors is an integer number (4799999304).

Almost surely, 2^21333330230 is an apocalyptic number.

21333330230 is a deficient number, since it is larger than the sum of its proper divisors (17066664202).

21333330230 is a wasteful number, since it uses less digits than its factorization.

21333330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133333030.

The product of its (nonzero) digits is 2916, while the sum is 23.

Adding to 21333330230 its reverse (3203333312), we get a palindrome (24536663542).

The spelling of 21333330230 in words is "twenty-one billion, three hundred thirty-three million, three hundred thirty thousand, two hundred thirty".