21441401307 has 6 divisors (see below), whose sum is σ = 30970913012. Its totient is φ = 14294267532.

The previous prime is 21441401213. The next prime is 21441401309. The reversal of 21441401307 is 70310414412.

21441401307 is a `hidden beast` number, since 214 + 4 + 140 + 1 + 307 = 666.

It is not a de Polignac number, because 21441401307 - 2¹⁰ = 21441400283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21441401309) 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 5 ways as a sum of consecutive naturals, for example, 1191188953 + ... + 1191188970.

Almost surely, 2^21441401307 is an apocalyptic number.

21441401307 is a deficient number, since it is larger than the sum of its proper divisors (9529511705).

21441401307 is a wasteful number, since it uses less digits than its factorization.

21441401307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382377929 (or 2382377926 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 21441401307 its reverse (70310414412), we get a palindrome (91751815719).

The spelling of 21441401307 in words is "twenty-one billion, four hundred forty-one million, four hundred one thousand, three hundred seven".