211021001121143 has 2 divisors, whose sum is σ = 211021001121144. Its totient is φ = 211021001121142.

The previous prime is 211021001121089. The next prime is 211021001121157. The reversal of 211021001121143 is 341121100120112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211021001121143 - 2¹⁰ = 211021001120119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211021001121943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510500560571 + 105510500560572.

It is an arithmetic number, because the mean of its divisors is an integer number (105510500560572).

Almost surely, 2^{211021001121143} is an apocalyptic number.

211021001121143 is a deficient number, since it is larger than the sum of its proper divisors (1).

211021001121143 is an equidigital number, since it uses as much as digits as its factorization.

211021001121143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 211021001121143 its reverse (341121100120112), we get a palindrome (552142101241255).

The spelling of 211021001121143 in words is "two hundred eleven trillion, twenty-one billion, one million, one hundred twenty-one thousand, one hundred forty-three".