230123311 has 4 divisors (see below), whose sum is σ = 251043624. Its totient is φ = 209203000.

The previous prime is 230123281. The next prime is 230123329. The reversal of 230123311 is 113321032.

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 230123311 - 2⁷ = 230123183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230123351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10460140 + ... + 10460161.

It is an arithmetic number, because the mean of its divisors is an integer number (62760906).

Almost surely, 2^230123311 is an apocalyptic number.

230123311 is a deficient number, since it is larger than the sum of its proper divisors (20920313).

230123311 is a wasteful number, since it uses less digits than its factorization.

230123311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20920312.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 230123311 is about 15169.8157866205. The cubic root of 230123311 is about 612.8020432261.

Adding to 230123311 its reverse (113321032), we get a palindrome (343444343).

The spelling of 230123311 in words is "two hundred thirty million, one hundred twenty-three thousand, three hundred eleven".