21330103310 has 16 divisors (see below), whose sum is σ = 38593123056. Its totient is φ = 8487833088.

The previous prime is 21330103283. The next prime is 21330103339. The reversal of 21330103310 is 1330103312.

It is a super-2 number, since 2×21330103310² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5524004 + ... + 5527863.

It is an arithmetic number, because the mean of its divisors is an integer number (2412070191).

Almost surely, 2^21330103310 is an apocalyptic number.

21330103310 is a deficient number, since it is larger than the sum of its proper divisors (17263019746).

21330103310 is a wasteful number, since it uses less digits than its factorization.

21330103310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11052067.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21330103310 its reverse (1330103312), we get a palindrome (22660206622).

The spelling of 21330103310 in words is "twenty-one billion, three hundred thirty million, one hundred three thousand, three hundred ten".