230311111 has 4 divisors (see below), whose sum is σ = 231992352. Its totient is φ = 228629872.

The previous prime is 230311079. The next prime is 230311117. The reversal of 230311111 is 111113032.

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 230311111 - 2⁵ = 230311079 is a prime.

It is a Duffinian number.

230311111 is a modest number, since divided by 11111 gives 2303 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 230311091 and 230311100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230311117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840415 + ... + 840688.

It is an arithmetic number, because the mean of its divisors is an integer number (57998088).

Almost surely, 2^230311111 is an apocalyptic number.

230311111 is a deficient number, since it is larger than the sum of its proper divisors (1681241).

230311111 is a wasteful number, since it uses less digits than its factorization.

230311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681240.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 230311111 is about 15176.0044478117. The cubic root of 230311111 is about 612.9686972564.

Adding to 230311111 its reverse (111113032), we get a palindrome (341424143).

It can be divided in two parts, 23031 and 1111, that added together give a palindrome (24142).

The spelling of 230311111 in words is "two hundred thirty million, three hundred eleven thousand, one hundred eleven".