10111123111 has 2 divisors, whose sum is σ = 10111123112. Its totient is φ = 10111123110.

The previous prime is 10111123067. The next prime is 10111123129. The reversal of 10111123111 is 11132111101.

It is a strong prime.

It is an emirp because it is prime and its reverse (11132111101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10111123111 - 2⁹ = 10111122599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10111123091 and 10111123100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111123511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055561555 + 5055561556.

It is an arithmetic number, because the mean of its divisors is an integer number (5055561556).

Almost surely, 2^10111123111 is an apocalyptic number.

10111123111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111123111 is an equidigital number, since it uses as much as digits as its factorization.

10111123111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 10111123111 its reverse (11132111101), we get a palindrome (21243234212).

The spelling of 10111123111 in words is "ten billion, one hundred eleven million, one hundred twenty-three thousand, one hundred eleven".