21130364310 has 48 divisors (see below), whose sum is σ = 55742259888. Its totient is φ = 5122511680.

The previous prime is 21130364291. The next prime is 21130364327. The reversal of 21130364310 is 1346303112.

It is a happy number.

It is a super-2 number, since 2×21130364310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2906889 + ... + 2914148.

It is an arithmetic number, because the mean of its divisors is an integer number (1161297081).

Almost surely, 2^21130364310 is an apocalyptic number.

21130364310 is an abundant number, since it is smaller than the sum of its proper divisors (34611895578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21130364310 is a wasteful number, since it uses less digits than its factorization.

21130364310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821069 (or 5821058 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21130364310 its reverse (1346303112), we get a palindrome (22476667422).

The spelling of 21130364310 in words is "twenty-one billion, one hundred thirty million, three hundred sixty-four thousand, three hundred ten".