23243205311 has 4 divisors (see below), whose sum is σ = 23373055800. Its totient is φ = 23113354824.

The previous prime is 23243205299. The next prime is 23243205367. The reversal of 23243205311 is 11350234232.

It is a happy number.

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 23243205311 - 2²² = 23239011007 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 (23243285311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64924976 + ... + 64925333.

It is an arithmetic number, because the mean of its divisors is an integer number (5843263950).

Almost surely, 2^23243205311 is an apocalyptic number.

23243205311 is a deficient number, since it is larger than the sum of its proper divisors (129850489).

23243205311 is a wasteful number, since it uses less digits than its factorization.

23243205311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129850488.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 23243205311 its reverse (11350234232), we get a palindrome (34593439543).

The spelling of 23243205311 in words is "twenty-three billion, two hundred forty-three million, two hundred five thousand, three hundred eleven".