230111081 has 2 divisors, whose sum is σ = 230111082. Its totient is φ = 230111080.

The previous prime is 230111059. The next prime is 230111083. The reversal of 230111081 is 180111032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207936400 + 22174681 = 14420^2 + 4709^2 .

It is a cyclic number.

It is not a de Polignac number, because 230111081 - 2²² = 225916777 is a prime.

It is a super-3 number, since 3×230111081³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 230111083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (230111083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115055540 + 115055541.

It is an arithmetic number, because the mean of its divisors is an integer number (115055541).

Almost surely, 2^230111081 is an apocalyptic number.

It is an amenable number.

230111081 is a deficient number, since it is larger than the sum of its proper divisors (1).

230111081 is an equidigital number, since it uses as much as digits as its factorization.

230111081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 230111081 is about 15169.4126781494. The cubic root of 230111081 is about 612.7911871598.

The spelling of 230111081 in words is "two hundred thirty million, one hundred eleven thousand, eighty-one".