213303312111 has 16 divisors (see below), whose sum is σ = 285134018400. Its totient is φ = 141837877248.

The previous prime is 213303312107. The next prime is 213303312119. The reversal of 213303312111 is 111213303312.

It is a happy number.

It is not a de Polignac number, because 213303312111 - 2² = 213303312107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213303312119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780675 + ... + 1896683.

It is an arithmetic number, because the mean of its divisors is an integer number (17820876150).

Almost surely, 2^213303312111 is an apocalyptic number.

213303312111 is a deficient number, since it is larger than the sum of its proper divisors (71830706289).

213303312111 is a wasteful number, since it uses less digits than its factorization.

213303312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117578.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 213303312111 its reverse (111213303312), we get a palindrome (324516615423).

It can be divided in two parts, 213303312 and 111, that multiplied together give a palindrome (23676667632).

The spelling of 213303312111 in words is "two hundred thirteen billion, three hundred three million, three hundred twelve thousand, one hundred eleven".