188328011 has 2 divisors, whose sum is σ = 188328012. Its totient is φ = 188328010.

The previous prime is 188327999. The next prime is 188328029. The reversal of 188328011 is 110823881.

It is a happy number.

188328011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 188328011 - 2¹⁰ = 188326987 is a prime.

It is a super-2 number, since 2×188328011² = 70934879454432242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (188328311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94164005 + 94164006.

It is an arithmetic number, because the mean of its divisors is an integer number (94164006).

Almost surely, 2^188328011 is an apocalyptic number.

188328011 is a deficient number, since it is larger than the sum of its proper divisors (1).

188328011 is an equidigital number, since it uses as much as digits as its factorization.

188328011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 188328011 is about 13723.2653184291. The cubic root of 188328011 is about 573.1984049785.

The spelling of 188328011 in words is "one hundred eighty-eight million, three hundred twenty-eight thousand, eleven".