21000011101141 has 2 divisors, whose sum is σ = 21000011101142. Its totient is φ = 21000011101140.

The previous prime is 21000011101129. The next prime is 21000011101189. The reversal of 21000011101141 is 14110111000012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15524663818225 + 5475347282916 = 3940135^2 + 2339946^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21000011101141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21000011104141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500005550570 + 10500005550571.

It is an arithmetic number, because the mean of its divisors is an integer number (10500005550571).

Almost surely, 2^{21000011101141} is an apocalyptic number.

It is an amenable number.

21000011101141 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000011101141 is an equidigital number, since it uses as much as digits as its factorization.

21000011101141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21000011101141 its reverse (14110111000012), we get a palindrome (35110122101153).

The spelling of 21000011101141 in words is "twenty-one trillion, eleven million, one hundred one thousand, one hundred forty-one".