211633921141 has 2 divisors, whose sum is σ = 211633921142. Its totient is φ = 211633921140.

The previous prime is 211633921133. The next prime is 211633921153. The reversal of 211633921141 is 141129336112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136256218641 + 75377702500 = 369129^2 + 274550^2 .

It is a cyclic number.

It is not a de Polignac number, because 211633921141 - 2³ = 211633921133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211633921097 and 211633921106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211633922141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105816960570 + 105816960571.

It is an arithmetic number, because the mean of its divisors is an integer number (105816960571).

Almost surely, 2^211633921141 is an apocalyptic number.

It is an amenable number.

211633921141 is a deficient number, since it is larger than the sum of its proper divisors (1).

211633921141 is an equidigital number, since it uses as much as digits as its factorization.

211633921141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The spelling of 211633921141 in words is "two hundred eleven billion, six hundred thirty-three million, nine hundred twenty-one thousand, one hundred forty-one".