21302231108 has 12 divisors (see below), whose sum is σ = 37295569920. Its totient is φ = 10646353992.

The previous prime is 21302231101. The next prime is 21302231147. The reversal of 21302231108 is 80113220312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21302231101) 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, 1180316 + ... + 1198227.

It is an arithmetic number, because the mean of its divisors is an integer number (3107964160).

Almost surely, 2^21302231108 is an apocalyptic number.

It is an amenable number.

21302231108 is a deficient number, since it is larger than the sum of its proper divisors (15993338812).

21302231108 is a wasteful number, since it uses less digits than its factorization.

21302231108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380786 (or 2380784 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 21302231108 in words is "twenty-one billion, three hundred two million, two hundred thirty-one thousand, one hundred eight".