23031326811 has 4 divisors (see below), whose sum is σ = 30708435752. Its totient is φ = 15354217872.

The previous prime is 23031326809. The next prime is 23031326873. The reversal of 23031326811 is 11862313032.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23031326811 - 2¹ = 23031326809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23031326891) 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 3 ways as a sum of consecutive naturals, for example, 3838554466 + ... + 3838554471.

It is an arithmetic number, because the mean of its divisors is an integer number (7677108938).

Almost surely, 2^23031326811 is an apocalyptic number.

23031326811 is a deficient number, since it is larger than the sum of its proper divisors (7677108941).

23031326811 is an equidigital number, since it uses as much as digits as its factorization.

23031326811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677108940.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 23031326811 its reverse (11862313032), we get a palindrome (34893639843).

The spelling of 23031326811 in words is "twenty-three billion, thirty-one million, three hundred twenty-six thousand, eight hundred eleven".