211310244011 has 4 divisors (see below), whose sum is σ = 211442232024. Its totient is φ = 211178256000.

The previous prime is 211310243971. The next prime is 211310244043. The reversal of 211310244011 is 110442013112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211310244011 - 2¹⁴ = 211310227627 is a prime.

It is a super-2 number, since 2×211310244011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211310241011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65991605 + ... + 65994806.

It is an arithmetic number, because the mean of its divisors is an integer number (52860558006).

Almost surely, 2^211310244011 is an apocalyptic number.

211310244011 is a deficient number, since it is larger than the sum of its proper divisors (131988013).

211310244011 is a wasteful number, since it uses less digits than its factorization.

211310244011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131988012.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 211310244011 its reverse (110442013112), we get a palindrome (321752257123).

The spelling of 211310244011 in words is "two hundred eleven billion, three hundred ten million, two hundred forty-four thousand, eleven".