21130441335 has 24 divisors (see below), whose sum is σ = 36632372400. Its totient is φ = 11267638272.

The previous prime is 21130441331. The next prime is 21130441351. The reversal of 21130441335 is 53314403112.

It is a happy number.

21130441335 is a `hidden beast` number, since 21 + 1 + 304 + 4 + 1 + 335 = 666.

It is not a de Polignac number, because 21130441335 - 2² = 21130441331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21130441299 and 21130441308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130441331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248116 + ... + 322214.

It is an arithmetic number, because the mean of its divisors is an integer number (1526348850).

Almost surely, 2^21130441335 is an apocalyptic number.

21130441335 is a deficient number, since it is larger than the sum of its proper divisors (15501931065).

21130441335 is a wasteful number, since it uses less digits than its factorization.

21130441335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80447 (or 80444 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 21130441335 its reverse (53314403112), we get a palindrome (74444844447).

The spelling of 21130441335 in words is "twenty-one billion, one hundred thirty million, four hundred forty-one thousand, three hundred thirty-five".