213111013303 has 4 divisors (see below), whose sum is σ = 225646955280. Its totient is φ = 200575071328.

The previous prime is 213111013289. The next prime is 213111013319. The reversal of 213111013303 is 303310111312.

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 213111013303 - 2¹³ = 213111005111 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 (213111013103) 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, 6267970963 + ... + 6267970996.

It is an arithmetic number, because the mean of its divisors is an integer number (56411738820).

Almost surely, 2^213111013303 is an apocalyptic number.

213111013303 is a deficient number, since it is larger than the sum of its proper divisors (12535941977).

213111013303 is a wasteful number, since it uses less digits than its factorization.

213111013303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12535941976.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 213111013303 its reverse (303310111312), we get a palindrome (516421124615).

The spelling of 213111013303 in words is "two hundred thirteen billion, one hundred eleven million, thirteen thousand, three hundred three".