230780111 has 2 divisors, whose sum is σ = 230780112. Its totient is φ = 230780110.

The previous prime is 230780087. The next prime is 230780113. The reversal of 230780111 is 111087032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230780111 is a prime.

Together with 230780113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230780113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115390055 + 115390056.

It is an arithmetic number, because the mean of its divisors is an integer number (115390056).

Almost surely, 2^230780111 is an apocalyptic number.

230780111 is a deficient number, since it is larger than the sum of its proper divisors (1).

230780111 is an equidigital number, since it uses as much as digits as its factorization.

230780111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 230780111 is about 15191.4486142698. The cubic root of 230780111 is about 613.3844933761.

The spelling of 230780111 in words is "two hundred thirty million, seven hundred eighty thousand, one hundred eleven".