21120300310 has 32 divisors (see below), whose sum is σ = 39428987904. Its totient is φ = 8136828000.

The previous prime is 21120300263. The next prime is 21120300317. The reversal of 21120300310 is 1300302112.

It is a super-2 number, since 2×21120300310² (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 (21120300317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96036 + ... + 226855.

It is an arithmetic number, because the mean of its divisors is an integer number (1232155872).

Almost surely, 2^21120300310 is an apocalyptic number.

21120300310 is a deficient number, since it is larger than the sum of its proper divisors (18308687594).

21120300310 is a wasteful number, since it uses less digits than its factorization.

21120300310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323140.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21120300310 its reverse (1300302112), we get a palindrome (22420602422).

The spelling of 21120300310 in words is "twenty-one billion, one hundred twenty million, three hundred thousand, three hundred ten".