213242441141 has 4 divisors (see below), whose sum is σ = 213409429452. Its totient is φ = 213075452832.

The previous prime is 213242441131. The next prime is 213242441149. The reversal of 213242441141 is 141144242312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 187767089041 + 25475352100 = 433321^2 + 159610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213242441141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213242441149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83492240 + ... + 83494793.

It is an arithmetic number, because the mean of its divisors is an integer number (53352357363).

Almost surely, 2^213242441141 is an apocalyptic number.

It is an amenable number.

213242441141 is a deficient number, since it is larger than the sum of its proper divisors (166988311).

213242441141 is a wasteful number, since it uses less digits than its factorization.

213242441141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166988310.

The product of its digits is 6144, while the sum is 29.

Adding to 213242441141 its reverse (141144242312), we get a palindrome (354386683453).

The spelling of 213242441141 in words is "two hundred thirteen billion, two hundred forty-two million, four hundred forty-one thousand, one hundred forty-one".