213223312011 has 32 divisors (see below), whose sum is σ = 291838464000. Its totient is φ = 138410746880.

The previous prime is 213223311979. The next prime is 213223312021. The reversal of 213223312011 is 110213322312.

It is a cyclic number.

It is not a de Polignac number, because 213223312011 - 2⁵ = 213223311979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213223312021) 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, 45862015 + ... + 45866663.

It is an arithmetic number, because the mean of its divisors is an integer number (9119952000).

Almost surely, 2^213223312011 is an apocalyptic number.

213223312011 is a deficient number, since it is larger than the sum of its proper divisors (78615151989).

213223312011 is a wasteful number, since it uses less digits than its factorization.

213223312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6299.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213223312011 its reverse (110213322312), we get a palindrome (323436634323).

It can be divided in two parts, 21322 and 3312011, that added together give a palindrome (3333333).

The spelling of 213223312011 in words is "two hundred thirteen billion, two hundred twenty-three million, three hundred twelve thousand, eleven".