21230130130 has 64 divisors (see below), whose sum is σ = 43996867200. Its totient is φ = 7294648320.

The previous prime is 21230130127. The next prime is 21230130161. The reversal of 21230130130 is 3103103212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 799954 + ... + 826066.

It is an arithmetic number, because the mean of its divisors is an integer number (687451050).

Almost surely, 2^21230130130 is an apocalyptic number.

21230130130 is an abundant number, since it is smaller than the sum of its proper divisors (22766737070).

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

21230130130 is a wasteful number, since it uses less digits than its factorization.

21230130130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26539.

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

Adding to 21230130130 its reverse (3103103212), we get a palindrome (24333233342).

The spelling of 21230130130 in words is "twenty-one billion, two hundred thirty million, one hundred thirty thousand, one hundred thirty".