23313212011 has 4 divisors (see below), whose sum is σ = 23527094800. Its totient is φ = 23099329224.

The previous prime is 23313211991. The next prime is 23313212017. The reversal of 23313212011 is 11021231332.

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 23313212011 - 2¹¹ = 23313209963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23313212011.

It is not an unprimeable number, because it can be changed into a prime (23313212017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106941231 + ... + 106941448.

It is an arithmetic number, because the mean of its divisors is an integer number (5881773700).

Almost surely, 2^23313212011 is an apocalyptic number.

23313212011 is a deficient number, since it is larger than the sum of its proper divisors (213882789).

23313212011 is a wasteful number, since it uses less digits than its factorization.

23313212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213882788.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23313212011 its reverse (11021231332), we get a palindrome (34334443343).

It can be divided in two parts, 2331321 and 2011, that added together give a palindrome (2333332).

The spelling of 23313212011 in words is "twenty-three billion, three hundred thirteen million, two hundred twelve thousand, eleven".