230331311 has 12 divisors (see below), whose sum is σ = 277177320. Its totient is φ = 190617840.

The previous prime is 230331289. The next prime is 230331341. The reversal of 230331311 is 113133032.

It is not a de Polignac number, because 230331311 - 2⁶ = 230331247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230331311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230331341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79625 + ... + 82466.

It is an arithmetic number, because the mean of its divisors is an integer number (23098110).

Almost surely, 2^230331311 is an apocalyptic number.

230331311 is a deficient number, since it is larger than the sum of its proper divisors (46846009).

230331311 is a wasteful number, since it uses less digits than its factorization.

230331311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162134 (or 162127 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 230331311 is about 15176.6699575368. The cubic root of 230331311 is about 612.9866173728.

Adding to 230331311 its reverse (113133032), we get a palindrome (343464343).

The spelling of 230331311 in words is "two hundred thirty million, three hundred thirty-one thousand, three hundred eleven".