231424331 has 8 divisors (see below), whose sum is σ = 241084800. Its totient is φ = 221901120.

The previous prime is 231424309. The next prime is 231424337. The reversal of 231424331 is 133424132.

231424331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231424331 - 2²⁶ = 164315467 is a prime.

It is a super-3 number, since 3×231424331³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231424297 and 231424306.

It is not an unprimeable number, because it can be changed into a prime (231424337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30866 + ... + 37623.

It is an arithmetic number, because the mean of its divisors is an integer number (30135600).

Almost surely, 2^231424331 is an apocalyptic number.

231424331 is a deficient number, since it is larger than the sum of its proper divisors (9660469).

231424331 is a wasteful number, since it uses less digits than its factorization.

231424331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68629.

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

The square root of 231424331 is about 15212.6372138430. The cubic root of 231424331 is about 613.9547150126.

Adding to 231424331 its reverse (133424132), we get a palindrome (364848463).

The spelling of 231424331 in words is "two hundred thirty-one million, four hundred twenty-four thousand, three hundred thirty-one".