21110033323032 has 128 divisors (see below), whose sum is σ = 56856893276160. Its totient is φ = 6512377196160.

The previous prime is 21110033323013. The next prime is 21110033323039. The reversal of 21110033323032 is 23032333001112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 21110033322993 and 21110033323011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110033323039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92067843 + ... + 92296845.

It is an arithmetic number, because the mean of its divisors is an integer number (444194478720).

Almost surely, 2^{21110033323032} 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 21110033323032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28428446638080).

21110033323032 is an abundant number, since it is smaller than the sum of its proper divisors (35746859953128).

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

21110033323032 is a wasteful number, since it uses less digits than its factorization.

21110033323032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234453 (or 234449 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21110033323032 its reverse (23032333001112), we get a palindrome (44142366324144).

The spelling of 21110033323032 in words is "twenty-one trillion, one hundred ten billion, thirty-three million, three hundred twenty-three thousand, thirty-two".