231424313 has 4 divisors (see below), whose sum is σ = 243604560. Its totient is φ = 219244068.

The previous prime is 231424309. The next prime is 231424337. The reversal of 231424313 is 313424132.

231424313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231424313 - 2² = 231424309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231424513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6090095 + ... + 6090132.

It is an arithmetic number, because the mean of its divisors is an integer number (60901140).

Almost surely, 2^231424313 is an apocalyptic number.

It is an amenable number.

231424313 is a deficient number, since it is larger than the sum of its proper divisors (12180247).

231424313 is a wasteful number, since it uses less digits than its factorization.

231424313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12180246.

The product of its digits is 1728, while the sum is 23.

The square root of 231424313 is about 15212.6366222296. The cubic root of 231424313 is about 613.9546990949.

Adding to 231424313 its reverse (313424132), we get a palindrome (544848445).

The spelling of 231424313 in words is "two hundred thirty-one million, four hundred twenty-four thousand, three hundred thirteen".