21011120200141 has 2 divisors, whose sum is σ = 21011120200142. Its totient is φ = 21011120200140.

The previous prime is 21011120200117. The next prime is 21011120200199. The reversal of 21011120200141 is 14100202111012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11539676940100 + 9471443260041 = 3397010^2 + 3077571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21011120200141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21011120200541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505560100070 + 10505560100071.

It is an arithmetic number, because the mean of its divisors is an integer number (10505560100071).

Almost surely, 2^{21011120200141} is an apocalyptic number.

It is an amenable number.

21011120200141 is a deficient number, since it is larger than the sum of its proper divisors (1).

21011120200141 is an equidigital number, since it uses as much as digits as its factorization.

21011120200141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21011120200141 its reverse (14100202111012), we get a palindrome (35111322311153).

The spelling of 21011120200141 in words is "twenty-one trillion, eleven billion, one hundred twenty million, two hundred thousand, one hundred forty-one".