213244124143 has 4 divisors (see below), whose sum is σ = 213318195840. Its totient is φ = 213170052448.

The previous prime is 213244124129. The next prime is 213244124161. The reversal of 213244124143 is 341421442312.

It is a happy number.

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 213244124143 - 2¹³ = 213244115951 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 (213244124113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37031530 + ... + 37037287.

It is an arithmetic number, because the mean of its divisors is an integer number (53329548960).

Almost surely, 2^213244124143 is an apocalyptic number.

213244124143 is a deficient number, since it is larger than the sum of its proper divisors (74071697).

213244124143 is an equidigital number, since it uses as much as digits as its factorization.

213244124143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74071696.

The product of its digits is 18432, while the sum is 31.

Adding to 213244124143 its reverse (341421442312), we get a palindrome (554665566455).

The spelling of 213244124143 in words is "two hundred thirteen billion, two hundred forty-four million, one hundred twenty-four thousand, one hundred forty-three".