21310302232 has 32 divisors (see below), whose sum is σ = 42295928400. Its totient is φ = 10048477824.

The previous prime is 21310302199. The next prime is 21310302241. The reversal of 21310302232 is 23220301312.

It is a congruent 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, 1058103 + ... + 1078054.

Almost surely, 2^21310302232 is an apocalyptic number.

It is an amenable number.

21310302232 is a deficient number, since it is larger than the sum of its proper divisors (20985626168).

21310302232 is a wasteful number, since it uses less digits than its factorization.

21310302232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136235 (or 2136231 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21310302232 its reverse (23220301312), we get a palindrome (44530603544).

The spelling of 21310302232 in words is "twenty-one billion, three hundred ten million, three hundred two thousand, two hundred thirty-two".