231011343 has 24 divisors (see below), whose sum is σ = 342691440. Its totient is φ = 149869440.

The previous prime is 231011321. The next prime is 231011353. The reversal of 231011343 is 343110132.

231011343 is a `hidden beast` number, since 2 + 310 + 11 + 343 = 666.

It is not a de Polignac number, because 231011343 - 2⁵ = 231011311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231011353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261180 + ... + 262062.

It is an arithmetic number, because the mean of its divisors is an integer number (14278810).

Almost surely, 2^231011343 is an apocalyptic number.

231011343 is a deficient number, since it is larger than the sum of its proper divisors (111680097).

231011343 is a wasteful number, since it uses less digits than its factorization.

231011343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 231011343 is about 15199.0573062937. The cubic root of 231011343 is about 613.5892868456.

Adding to 231011343 its reverse (343110132), we get a palindrome (574121475).

The spelling of 231011343 in words is "two hundred thirty-one million, eleven thousand, three hundred forty-three".