213044223103 has 4 divisors (see below), whose sum is σ = 213536242528. Its totient is φ = 212552203680.

The previous prime is 213044223079. The next prime is 213044223151. The reversal of 213044223103 is 301322440312.

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 213044223103 - 2²⁵ = 213010668671 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 (213044223503) 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, 246009063 + ... + 246009928.

It is an arithmetic number, because the mean of its divisors is an integer number (53384060632).

Almost surely, 2^213044223103 is an apocalyptic number.

213044223103 is a deficient number, since it is larger than the sum of its proper divisors (492019425).

213044223103 is an equidigital number, since it uses as much as digits as its factorization.

213044223103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492019424.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 213044223103 its reverse (301322440312), we get a palindrome (514366663415).

The spelling of 213044223103 in words is "two hundred thirteen billion, forty-four million, two hundred twenty-three thousand, one hundred three".