228132011 has 2 divisors, whose sum is σ = 228132012. Its totient is φ = 228132010.

The previous prime is 228131977. The next prime is 228132019. The reversal of 228132011 is 110231822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228132011 - 2⁶ = 228131947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228132019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114066005 + 114066006.

It is an arithmetic number, because the mean of its divisors is an integer number (114066006).

Almost surely, 2^228132011 is an apocalyptic number.

228132011 is a deficient number, since it is larger than the sum of its proper divisors (1).

228132011 is an equidigital number, since it uses as much as digits as its factorization.

228132011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 228132011 is about 15104.0395590054. The cubic root of 228132011 is about 611.0293567022.

Adding to 228132011 its reverse (110231822), we get a palindrome (338363833).

The spelling of 228132011 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, eleven".