230791111 has 2 divisors, whose sum is σ = 230791112. Its totient is φ = 230791110.

The previous prime is 230791073. The next prime is 230791117. The reversal of 230791111 is 111197032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230791111 - 2¹³ = 230782919 is a prime.

It is a super-2 number, since 2×230791111² = 106529073833228642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230791117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115395555 + 115395556.

It is an arithmetic number, because the mean of its divisors is an integer number (115395556).

Almost surely, 2^230791111 is an apocalyptic number.

230791111 is a deficient number, since it is larger than the sum of its proper divisors (1).

230791111 is an equidigital number, since it uses as much as digits as its factorization.

230791111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 230791111 is about 15191.8106557448. The cubic root of 230791111 is about 613.3942387598.

The spelling of 230791111 in words is "two hundred thirty million, seven hundred ninety-one thousand, one hundred eleven".