23203331311 has 4 divisors (see below), whose sum is σ = 23211886672. Its totient is φ = 23194775952.

The previous prime is 23203331309. The next prime is 23203331321. The reversal of 23203331311 is 11313330232.

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 23203331311 - 2¹ = 23203331309 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 (23203331321) 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, 4273611 + ... + 4279036.

It is an arithmetic number, because the mean of its divisors is an integer number (5802971668).

Almost surely, 2^23203331311 is an apocalyptic number.

23203331311 is a deficient number, since it is larger than the sum of its proper divisors (8555361).

23203331311 is an equidigital number, since it uses as much as digits as its factorization.

23203331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555360.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23203331311 its reverse (11313330232), we get a palindrome (34516661543).

The spelling of 23203331311 in words is "twenty-three billion, two hundred three million, three hundred thirty-one thousand, three hundred eleven".