21400241041 has 8 divisors (see below), whose sum is σ = 21995239040. Its totient is φ = 20806117488.

The previous prime is 21400241039. The next prime is 21400241047. The reversal of 21400241041 is 14014200412.

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 21400241041 - 2¹ = 21400241039 is a prime.

It is a super-2 number, since 2×21400241041² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21400241047) 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, 168831 + ... + 267028.

It is an arithmetic number, because the mean of its divisors is an integer number (2749404880).

Almost surely, 2^21400241041 is an apocalyptic number.

It is an amenable number.

21400241041 is a deficient number, since it is larger than the sum of its proper divisors (594997999).

21400241041 is a wasteful number, since it uses less digits than its factorization.

21400241041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437223.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21400241041 its reverse (14014200412), we get a palindrome (35414441453).

The spelling of 21400241041 in words is "twenty-one billion, four hundred million, two hundred forty-one thousand, forty-one".