21302231330 has 16 divisors (see below), whose sum is σ = 40362122880. Its totient is φ = 8072424432.

The previous prime is 21302231303. The next prime is 21302231359. The reversal of 21302231330 is 3313220312.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56058314 + ... + 56058693.

It is an arithmetic number, because the mean of its divisors is an integer number (2522632680).

Almost surely, 2^21302231330 is an apocalyptic number.

21302231330 is a deficient number, since it is larger than the sum of its proper divisors (19059891550).

21302231330 is a wasteful number, since it uses less digits than its factorization.

21302231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112117033.

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

Adding to 21302231330 its reverse (3313220312), we get a palindrome (24615451642).

The spelling of 21302231330 in words is "twenty-one billion, three hundred two million, two hundred thirty-one thousand, three hundred thirty".