21130320041 has 8 divisors (see below), whose sum is σ = 22051357440. Its totient is φ = 20209476672.

The previous prime is 21130320007. The next prime is 21130320061. The reversal of 21130320041 is 14002303112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21130320041 - 2¹⁴ = 21130303657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21130320061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201521 + ... + 287873.

It is an arithmetic number, because the mean of its divisors is an integer number (2756419680).

Almost surely, 2^21130320041 is an apocalyptic number.

It is an amenable number.

21130320041 is a deficient number, since it is larger than the sum of its proper divisors (921037399).

21130320041 is a wasteful number, since it uses less digits than its factorization.

21130320041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97015.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21130320041 its reverse (14002303112), we get a palindrome (35132623153).

The spelling of 21130320041 in words is "twenty-one billion, one hundred thirty million, three hundred twenty thousand, forty-one".