211243241023 has 4 divisors (see below), whose sum is σ = 222361306360. Its totient is φ = 200125175688.

The previous prime is 211243241003. The next prime is 211243241047. The reversal of 211243241023 is 320142342112.

211243241023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211243241023 - 2¹⁷ = 211243109951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211243241003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5559032640 + ... + 5559032677.

It is an arithmetic number, because the mean of its divisors is an integer number (55590326590).

Almost surely, 2^211243241023 is an apocalyptic number.

211243241023 is a deficient number, since it is larger than the sum of its proper divisors (11118065337).

211243241023 is a wasteful number, since it uses less digits than its factorization.

211243241023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11118065336.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 211243241023 its reverse (320142342112), we get a palindrome (531385583135).

The spelling of 211243241023 in words is "two hundred eleven billion, two hundred forty-three million, two hundred forty-one thousand, twenty-three".