213404440143203 has 4 divisors (see below), whose sum is σ = 213404469755928. Its totient is φ = 213404410530480.

The previous prime is 213404440143173. The next prime is 213404440143227. The reversal of 213404440143203 is 302341044404312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213404440143203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213404440143263) 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, 3783263 + ... + 21002903.

It is an arithmetic number, because the mean of its divisors is an integer number (53351117438982).

Almost surely, 2^{213404440143203} is an apocalyptic number.

213404440143203 is a deficient number, since it is larger than the sum of its proper divisors (29612725).

213404440143203 is a wasteful number, since it uses less digits than its factorization.

213404440143203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29612724.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 213404440143203 its reverse (302341044404312), we get a palindrome (515745484547515).

The spelling of 213404440143203 in words is "two hundred thirteen trillion, four hundred four billion, four hundred forty million, one hundred forty-three thousand, two hundred three".