21030213310 has 16 divisors (see below), whose sum is σ = 37856258496. Its totient is φ = 8411668768.

The previous prime is 21030213299. The next prime is 21030213311. The reversal of 21030213310 is 1331203012.

It is a super-2 number, since 2×21030213310² (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 (21030213311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235704 + ... + 312436.

It is an arithmetic number, because the mean of its divisors is an integer number (2366016156).

Almost surely, 2^21030213310 is an apocalyptic number.

21030213310 is a deficient number, since it is larger than the sum of its proper divisors (16826045186).

21030213310 is a wasteful number, since it uses less digits than its factorization.

21030213310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104147.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21030213310 its reverse (1331203012), we get a palindrome (22361416322).

The spelling of 21030213310 in words is "twenty-one billion, thirty million, two hundred thirteen thousand, three hundred ten".