230140311 has 32 divisors (see below), whose sum is σ = 325079040. Its totient is φ = 144633600.

The previous prime is 230140307. The next prime is 230140319. The reversal of 230140311 is 113041032.

It is not a de Polignac number, because 230140311 - 2² = 230140307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230140319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 739846 + ... + 740156.

It is an arithmetic number, because the mean of its divisors is an integer number (10158720).

Almost surely, 2^230140311 is an apocalyptic number.

230140311 is a deficient number, since it is larger than the sum of its proper divisors (94938729).

230140311 is a wasteful number, since it uses less digits than its factorization.

230140311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 230140311 is about 15170.3760994907. The cubic root of 230140311 is about 612.8171327856.

Adding to 230140311 its reverse (113041032), we get a palindrome (343181343).

The spelling of 230140311 in words is "two hundred thirty million, one hundred forty thousand, three hundred eleven".