23220231311 has 2 divisors, whose sum is σ = 23220231312. Its totient is φ = 23220231310.

The previous prime is 23220231277. The next prime is 23220231313. The reversal of 23220231311 is 11313202232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23220231311 - 2³⁰ = 22146489487 is a prime.

Together with 23220231313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23220231313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610115655 + 11610115656.

It is an arithmetic number, because the mean of its divisors is an integer number (11610115656).

Almost surely, 2^23220231311 is an apocalyptic number.

23220231311 is a deficient number, since it is larger than the sum of its proper divisors (1).

23220231311 is an equidigital number, since it uses as much as digits as its factorization.

23220231311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23220231311 its reverse (11313202232), we get a palindrome (34533433543).

The spelling of 23220231311 in words is "twenty-three billion, two hundred twenty million, two hundred thirty-one thousand, three hundred eleven".