211142042233 has 8 divisors (see below), whose sum is σ = 220876993800. Its totient is φ = 201570703488.

The previous prime is 211142042203. The next prime is 211142042249. The reversal of 211142042233 is 332240241112.

It can be written as a sum of positive squares in 4 ways, for example, as 51020419129 + 160121623104 = 225877^2 + 400152^2 .

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 211142042233 - 2²⁵ = 211108487801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211142042198 and 211142042207.

It is not an unprimeable number, because it can be changed into a prime (211142042203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40900566 + ... + 40905727.

It is an arithmetic number, because the mean of its divisors is an integer number (27609624225).

Almost surely, 2^211142042233 is an apocalyptic number.

It is an amenable number.

211142042233 is a deficient number, since it is larger than the sum of its proper divisors (9734951567).

211142042233 is an equidigital number, since it uses as much as digits as its factorization.

211142042233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81806411.

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

Adding to 211142042233 its reverse (332240241112), we get a palindrome (543382283345).

The spelling of 211142042233 in words is "two hundred eleven billion, one hundred forty-two million, forty-two thousand, two hundred thirty-three".