21301232110 has 16 divisors (see below), whose sum is σ = 38343942000. Its totient is φ = 8520109696.

The previous prime is 21301232087. The next prime is 21301232231. The reversal of 21301232110 is 1123210312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320646 + ... + 381334.

It is an arithmetic number, because the mean of its divisors is an integer number (2396496375).

Almost surely, 2^21301232110 is an apocalyptic number.

21301232110 is a deficient number, since it is larger than the sum of its proper divisors (17042709890).

21301232110 is a wasteful number, since it uses less digits than its factorization.

21301232110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95795.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21301232110 its reverse (1123210312), we get a palindrome (22424442422).

The spelling of 21301232110 in words is "twenty-one billion, three hundred one million, two hundred thirty-two thousand, one hundred ten".