21111033323232 has 72 divisors (see below), whose sum is σ = 60039026794656. Its totient is φ = 7036480613376.

The previous prime is 21111033323197. The next prime is 21111033323243. The reversal of 21111033323232 is 23232333011112.

21111033323232 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 1 + 0 + 3 + 332 + 323 + 2 = 666.

21111033323232 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×21111033323232² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21111033323196 and 21111033323205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073193 + ... + 6585879.

It is an arithmetic number, because the mean of its divisors is an integer number (833875372148).

Almost surely, 2^{21111033323232} is an apocalyptic number.

It is an amenable number.

21111033323232 is an abundant number, since it is smaller than the sum of its proper divisors (38927993471424).

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

21111033323232 is a wasteful number, since it uses less digits than its factorization.

21111033323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526000 (or 5525989 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 21111033323232 its reverse (23232333011112), we get a palindrome (44343366334344).

The spelling of 21111033323232 in words is "twenty-one trillion, one hundred eleven billion, thirty-three million, three hundred twenty-three thousand, two hundred thirty-two".