213422404242203 has 4 divisors (see below), whose sum is σ = 229839512260848. Its totient is φ = 197005296223560.

The previous prime is 213422404242191. The next prime is 213422404242211. The reversal of 213422404242203 is 302242404224312.

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 213422404242203 - 2²⁶ = 213422337133339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213422404245203) 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, 8208554009303 + ... + 8208554009328.

It is an arithmetic number, because the mean of its divisors is an integer number (57459878065212).

Almost surely, 2^{213422404242203} is an apocalyptic number.

213422404242203 is a deficient number, since it is larger than the sum of its proper divisors (16417108018645).

213422404242203 is a wasteful number, since it uses less digits than its factorization.

213422404242203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16417108018644.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 213422404242203 its reverse (302242404224312), we get a palindrome (515664808466515).

The spelling of 213422404242203 in words is "two hundred thirteen trillion, four hundred twenty-two billion, four hundred four million, two hundred forty-two thousand, two hundred three".