211242143011 has 8 divisors (see below), whose sum is σ = 219698274224. Its totient is φ = 202947081120.

The previous prime is 211242142999. The next prime is 211242143027. The reversal of 211242143011 is 110341242112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211242143011 - 2⁷ = 211242142883 is a prime.

It is a super-2 number, since 2×211242143011² (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 (211242143611) 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 7 ways as a sum of consecutive naturals, for example, 40264656 + ... + 40269901.

It is an arithmetic number, because the mean of its divisors is an integer number (27462284278).

Almost surely, 2^211242143011 is an apocalyptic number.

211242143011 is a deficient number, since it is larger than the sum of its proper divisors (8456131213).

211242143011 is an equidigital number, since it uses as much as digits as its factorization.

211242143011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80534661.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 211242143011 its reverse (110341242112), we get a palindrome (321583385123).

The spelling of 211242143011 in words is "two hundred eleven billion, two hundred forty-two million, one hundred forty-three thousand, eleven".