188123113 has 2 divisors, whose sum is σ = 188123114. Its totient is φ = 188123112.

The previous prime is 188123101. The next prime is 188123183. The reversal of 188123113 is 311321881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168169024 + 19954089 = 12968^2 + 4467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188123113 is a prime.

It is not a weakly prime, because it can be changed into another prime (188123183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94061556 + 94061557.

It is an arithmetic number, because the mean of its divisors is an integer number (94061557).

Almost surely, 2^188123113 is an apocalyptic number.

It is an amenable number.

188123113 is a deficient number, since it is larger than the sum of its proper divisors (1).

188123113 is an equidigital number, since it uses as much as digits as its factorization.

188123113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 28.

The square root of 188123113 is about 13715.7979352278. The cubic root of 188123113 is about 572.9904525068.

Adding to 188123113 its reverse (311321881), we get a palindrome (499444994).

The spelling of 188123113 in words is "one hundred eighty-eight million, one hundred twenty-three thousand, one hundred thirteen".