23111311103 has 2 divisors, whose sum is σ = 23111311104. Its totient is φ = 23111311102.

The previous prime is 23111311087. The next prime is 23111311109. The reversal of 23111311103 is 30111311132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23111311103 - 2⁴ = 23111311087 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23111311109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11555655551 + 11555655552.

It is an arithmetic number, because the mean of its divisors is an integer number (11555655552).

Almost surely, 2^23111311103 is an apocalyptic number.

23111311103 is a deficient number, since it is larger than the sum of its proper divisors (1).

23111311103 is an equidigital number, since it uses as much as digits as its factorization.

23111311103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 23111311103 its reverse (30111311132), we get a palindrome (53222622235).

The spelling of 23111311103 in words is "twenty-three billion, one hundred eleven million, three hundred eleven thousand, one hundred three".