21323330110 has 16 divisors (see below), whose sum is σ = 38408472432. Its totient is φ = 8523448000.

The previous prime is 21323330081. The next prime is 21323330111. The reversal of 21323330110 is 1103332312.

It is a super-2 number, since 2×21323330110² (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 (21323330111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720271 + ... + 749290.

It is an arithmetic number, because the mean of its divisors is an integer number (2400529527).

Almost surely, 2^21323330110 is an apocalyptic number.

21323330110 is a deficient number, since it is larger than the sum of its proper divisors (17085142322).

21323330110 is a wasteful number, since it uses less digits than its factorization.

21323330110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471019.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21323330110 its reverse (1103332312), we get a palindrome (22426662422).

The spelling of 21323330110 in words is "twenty-one billion, three hundred twenty-three million, three hundred thirty thousand, one hundred ten".