21333313310 has 8 divisors (see below), whose sum is σ = 38399963976. Its totient is φ = 8533325320.

The previous prime is 21333313291. The next prime is 21333313319. The reversal of 21333313310 is 1331333312.

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

It is a super-2 number, since 2×21333313310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333313319) 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, 1066665656 + ... + 1066665675.

It is an arithmetic number, because the mean of its divisors is an integer number (4799995497).

Almost surely, 2^21333313310 is an apocalyptic number.

21333313310 is a deficient number, since it is larger than the sum of its proper divisors (17066650666).

21333313310 is a wasteful number, since it uses less digits than its factorization.

21333313310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133331338.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 21333313310 its reverse (1331333312), we get a palindrome (22664646622).

The spelling of 21333313310 in words is "twenty-one billion, three hundred thirty-three million, three hundred thirteen thousand, three hundred ten".