21232323130 has 32 divisors (see below), whose sum is σ = 38461476240. Its totient is φ = 8438976000.

The previous prime is 21232323103. The next prime is 21232323143. The reversal of 21232323130 is 3132323212.

It can be written as a sum of positive squares in 8 ways, for example, as 9589697329 + 11642625801 = 97927^2 + 107901^2 .

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 15 ways as a sum of consecutive naturals, for example, 1626630 + ... + 1639630.

Almost surely, 2^21232323130 is an apocalyptic number.

21232323130 is a deficient number, since it is larger than the sum of its proper divisors (17229153110).

21232323130 is a wasteful number, since it uses less digits than its factorization.

21232323130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14034.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21232323130 its reverse (3132323212), we get a palindrome (24364646342).

The spelling of 21232323130 in words is "twenty-one billion, two hundred thirty-two million, three hundred twenty-three thousand, one hundred thirty".