213111203303 has 4 divisors (see below), whose sum is σ = 214288613448. Its totient is φ = 211933793160.

The previous prime is 213111203281. The next prime is 213111203309. The reversal of 213111203303 is 303302111312.

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 213111203303 - 2³⁴ = 195931334119 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 (213111203309) 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, 588704801 + ... + 588705162.

It is an arithmetic number, because the mean of its divisors is an integer number (53572153362).

Almost surely, 2^213111203303 is an apocalyptic number.

213111203303 is a deficient number, since it is larger than the sum of its proper divisors (1177410145).

213111203303 is a wasteful number, since it uses less digits than its factorization.

213111203303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177410144.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 213111203303 its reverse (303302111312), we get a palindrome (516413314615).

The spelling of 213111203303 in words is "two hundred thirteen billion, one hundred eleven million, two hundred three thousand, three hundred three".