21230130310 has 64 divisors (see below), whose sum is σ = 39422298240. Its totient is φ = 8229196800.

The previous prime is 21230130277. The next prime is 21230130461. The reversal of 21230130310 is 1303103212.

It is a super-2 number, since 2×21230130310² (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 31 ways as a sum of consecutive naturals, for example, 9257524 + ... + 9259816.

It is an arithmetic number, because the mean of its divisors is an integer number (615973410).

Almost surely, 2^21230130310 is an apocalyptic number.

21230130310 is a deficient number, since it is larger than the sum of its proper divisors (18192167930).

21230130310 is a wasteful number, since it uses less digits than its factorization.

21230130310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593.

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

Adding to 21230130310 its reverse (1303103212), we get a palindrome (22533233522).

The spelling of 21230130310 in words is "twenty-one billion, two hundred thirty million, one hundred thirty thousand, three hundred ten".