21232241433441 has 12 divisors (see below), whose sum is σ = 30669201940260. Its totient is φ = 14154638964480.

The previous prime is 21232241433391. The next prime is 21232241433461. The reversal of 21232241433441 is 14433414223212.

21232241433441 is a `hidden beast` number, since 2 + 1 + 2 + 32 + 241 + 43 + 344 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20274982700625 + 957258732816 = 4502775^2 + 978396^2 .

It is not a de Polignac number, because 21232241433441 - 2¹⁵ = 21232241400673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21232241433396 and 21232241433405.

It is not an unprimeable number, because it can be changed into a prime (21232241433461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15007000 + ... + 16360761.

It is an arithmetic number, because the mean of its divisors is an integer number (2555766828355).

Almost surely, 2^{21232241433441} is an apocalyptic number.

It is an amenable number.

21232241433441 is a deficient number, since it is larger than the sum of its proper divisors (9436960506819).

21232241433441 is a wasteful number, since it uses less digits than its factorization.

21232241433441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31442976 (or 31442973 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

Adding to 21232241433441 its reverse (14433414223212), we get a palindrome (35665655656653).

The spelling of 21232241433441 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred forty-one million, four hundred thirty-three thousand, four hundred forty-one".