21000241183 has 2 divisors, whose sum is σ = 21000241184. Its totient is φ = 21000241182.

The previous prime is 21000241181. The next prime is 21000241261. The reversal of 21000241183 is 38114200012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21000241183 - 2¹ = 21000241181 is a prime.

Together with 21000241181, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21000241181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500120591 + 10500120592.

It is an arithmetic number, because the mean of its divisors is an integer number (10500120592).

Almost surely, 2^21000241183 is an apocalyptic number.

21000241183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000241183 is an equidigital number, since it uses as much as digits as its factorization.

21000241183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 21000241183 its reverse (38114200012), we get a palindrome (59114441195).

The spelling of 21000241183 in words is "twenty-one billion, two hundred forty-one thousand, one hundred eighty-three".