211442501113 has 2 divisors, whose sum is σ = 211442501114. Its totient is φ = 211442501112.

The previous prime is 211442501099. The next prime is 211442501131. The reversal of 211442501113 is 311105244112.

It is a happy number.

Together with next prime (211442501131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190748815504 + 20693685609 = 436748^2 + 143853^2 .

It is a cyclic number.

It is not a de Polignac number, because 211442501113 - 2²¹ = 211440403961 is a prime.

It is not a weakly prime, because it can be changed into another prime (211442501183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105721250556 + 105721250557.

It is an arithmetic number, because the mean of its divisors is an integer number (105721250557).

Almost surely, 2^211442501113 is an apocalyptic number.

It is an amenable number.

211442501113 is a deficient number, since it is larger than the sum of its proper divisors (1).

211442501113 is an equidigital number, since it uses as much as digits as its factorization.

211442501113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 211442501113 its reverse (311105244112), we get a palindrome (522547745225).

The spelling of 211442501113 in words is "two hundred eleven billion, four hundred forty-two million, five hundred one thousand, one hundred thirteen".