21110232032 has 24 divisors (see below), whose sum is σ = 41769630000. Its totient is φ = 10502072064.

The previous prime is 21110231993. The next prime is 21110232067. The reversal of 21110232032 is 23023201112.

It is a self number, because there is not a number n which added to its sum of digits gives 21110232032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651157 + ... + 1663892.

It is an arithmetic number, because the mean of its divisors is an integer number (1740401250).

Almost surely, 2^21110232032 is an apocalyptic number.

It is an amenable number.

21110232032 is a deficient number, since it is larger than the sum of its proper divisors (20659397968).

21110232032 is a wasteful number, since it uses less digits than its factorization.

21110232032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315258 (or 3315250 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21110232032 its reverse (23023201112), we get a palindrome (44133433144).

The spelling of 21110232032 in words is "twenty-one billion, one hundred ten million, two hundred thirty-two thousand, thirty-two".