21110300233232 has 80 divisors (see below), whose sum is σ = 49224778460160. Its totient is φ = 8567559858816.

The previous prime is 21110300233207. The next prime is 21110300233241. The reversal of 21110300233232 is 23233200301112.

It is a junction number, because it is equal to n+sod(n) for n = 21110300233198 and 21110300233207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3109043 + ... + 7203245.

It is an arithmetic number, because the mean of its divisors is an integer number (615309730752).

Almost surely, 2^{21110300233232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21110300233232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24612389230080).

21110300233232 is an abundant number, since it is smaller than the sum of its proper divisors (28114478226928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21110300233232 is a wasteful number, since it uses less digits than its factorization.

21110300233232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096660 (or 4096654 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21110300233232 its reverse (23233200301112), we get a palindrome (44343500534344).

The spelling of 21110300233232 in words is "twenty-one trillion, one hundred ten billion, three hundred million, two hundred thirty-three thousand, two hundred thirty-two".