201130123111 has 2 divisors, whose sum is σ = 201130123112. Its totient is φ = 201130123110.

The previous prime is 201130123039. The next prime is 201130123133. The reversal of 201130123111 is 111321031102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201130123111 - 2⁷ = 201130122983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201130123141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100565061555 + 100565061556.

It is an arithmetic number, because the mean of its divisors is an integer number (100565061556).

Almost surely, 2^201130123111 is an apocalyptic number.

201130123111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201130123111 is an equidigital number, since it uses as much as digits as its factorization.

201130123111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 201130123111 its reverse (111321031102), we get a palindrome (312451154213).

The spelling of 201130123111 in words is "two hundred one billion, one hundred thirty million, one hundred twenty-three thousand, one hundred eleven".