21112121113183 has 2 divisors, whose sum is σ = 21112121113184. Its totient is φ = 21112121113182.

The previous prime is 21112121113163. The next prime is 21112121113217. The reversal of 21112121113183 is 38131112121112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21112121113183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21112121113103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556060556591 + 10556060556592.

It is an arithmetic number, because the mean of its divisors is an integer number (10556060556592).

Almost surely, 2^{21112121113183} is an apocalyptic number.

21112121113183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112121113183 is an equidigital number, since it uses as much as digits as its factorization.

21112121113183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 28.

Adding to 21112121113183 its reverse (38131112121112), we get a palindrome (59243233234295).

The spelling of 21112121113183 in words is "twenty-one trillion, one hundred twelve billion, one hundred twenty-one million, one hundred thirteen thousand, one hundred eighty-three".