21323203130 has 16 divisors (see below), whose sum is σ = 38458692000. Its totient is φ = 8512186512.

The previous prime is 21323203103. The next prime is 21323203141. The reversal of 21323203130 is 3130232312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2131604 + ... + 2141583.

It is an arithmetic number, because the mean of its divisors is an integer number (2403668250).

Almost surely, 2^21323203130 is an apocalyptic number.

21323203130 is a deficient number, since it is larger than the sum of its proper divisors (17135488870).

21323203130 is a wasteful number, since it uses less digits than its factorization.

21323203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273693.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21323203130 its reverse (3130232312), we get a palindrome (24453435442).

The spelling of 21323203130 in words is "twenty-one billion, three hundred twenty-three million, two hundred three thousand, one hundred thirty".