21032310284 has 12 divisors (see below), whose sum is σ = 36808780008. Its totient is φ = 10515516000.

The previous prime is 21032310283. The next prime is 21032310301. The reversal of 21032310284 is 48201323012.

It is not an unprimeable number, because it can be changed into a prime (21032310283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81482 + ... + 220689.

It is an arithmetic number, because the mean of its divisors is an integer number (3067398334).

Almost surely, 2^21032310284 is an apocalyptic number.

It is an amenable number.

21032310284 is a deficient number, since it is larger than the sum of its proper divisors (15776469724).

21032310284 is a wasteful number, since it uses less digits than its factorization.

21032310284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319576 (or 319574 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 21032310284 its reverse (48201323012), we get a palindrome (69233633296).

The spelling of 21032310284 in words is "twenty-one billion, thirty-two million, three hundred ten thousand, two hundred eighty-four".