21130441308 has 18 divisors (see below), whose sum is σ = 53413060064. Its totient is φ = 7043480424.

The previous prime is 21130441301. The next prime is 21130441327. The reversal of 21130441308 is 80314403112.

21130441308 is a `hidden beast` number, since 2 + 11 + 304 + 41 + 308 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130441301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 293478316 + ... + 293478387.

Almost surely, 2^21130441308 is an apocalyptic number.

It is an amenable number.

21130441308 is an abundant number, since it is smaller than the sum of its proper divisors (32282618756).

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

21130441308 is a wasteful number, since it uses less digits than its factorization.

21130441308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586956713 (or 586956708 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 21130441308 in words is "twenty-one billion, one hundred thirty million, four hundred forty-one thousand, three hundred eight".