230011111 has 4 divisors (see below), whose sum is σ = 250921224. Its totient is φ = 209101000.

The previous prime is 230011099. The next prime is 230011127. The reversal of 230011111 is 111110032.

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 230011111 - 2⁷ = 230010983 is a prime.

It is a super-2 number, since 2×230011111² = 105810222366908642, which contains 22 as substring.

It is a Duffinian number.

230011111 is a modest number, since divided by 11111 gives 2300 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230011711) 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, 10455040 + ... + 10455061.

It is an arithmetic number, because the mean of its divisors is an integer number (62730306).

Almost surely, 2^230011111 is an apocalyptic number.

230011111 is a deficient number, since it is larger than the sum of its proper divisors (20910113).

230011111 is a wasteful number, since it uses less digits than its factorization.

230011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20910112.

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

The square root of 230011111 is about 15166.1172025011. The cubic root of 230011111 is about 612.7024334902.

Adding to 230011111 its reverse (111110032), we get a palindrome (341121143).

The spelling of 230011111 in words is "two hundred thirty million, eleven thousand, one hundred eleven".