230111011 has 4 divisors (see below), whose sum is σ = 247811872. Its totient is φ = 212410152.

The previous prime is 230111003. The next prime is 230111023. The reversal of 230111011 is 110111032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230111011 - 2³ = 230111003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230111081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8850411 + ... + 8850436.

It is an arithmetic number, because the mean of its divisors is an integer number (61952968).

Almost surely, 2^230111011 is an apocalyptic number.

230111011 is a deficient number, since it is larger than the sum of its proper divisors (17700861).

230111011 is a wasteful number, since it uses less digits than its factorization.

230111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17700860.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 230111011 is about 15169.4103708747. The cubic root of 230111011 is about 612.7911250226.

Adding to 230111011 its reverse (110111032), we get a palindrome (340222043).

The spelling of 230111011 in words is "two hundred thirty million, one hundred eleven thousand, eleven".