213331233333 has 32 divisors (see below), whose sum is σ = 300360356352. Its totient is φ = 134503027200.

The previous prime is 213331233301. The next prime is 213331233337. The reversal of 213331233333 is 333332133312.

It is a happy number.

It is not a de Polignac number, because 213331233333 - 2⁵ = 213331233301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213331233333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213331233337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1146835 + ... + 1319807.

It is an arithmetic number, because the mean of its divisors is an integer number (9386261136).

Almost surely, 2^213331233333 is an apocalyptic number.

It is an amenable number.

213331233333 is a deficient number, since it is larger than the sum of its proper divisors (87029123019).

213331233333 is a wasteful number, since it uses less digits than its factorization.

213331233333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173325.

The product of its digits is 26244, while the sum is 30.

Adding to 213331233333 its reverse (333332133312), we get a palindrome (546663366645).

It can be divided in two parts, 2133312 and 33333, that multiplied together give a square (71109688896 = 266664²).

The spelling of 213331233333 in words is "two hundred thirteen billion, three hundred thirty-one million, two hundred thirty-three thousand, three hundred thirty-three".