231123430 has 8 divisors (see below), whose sum is σ = 416022192. Its totient is φ = 92449368.

The previous prime is 231123421. The next prime is 231123439. The reversal of 231123430 is 34321132.

It is an interprime number because it is at equal distance from previous prime (231123421) and next prime (231123439).

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

It is a junction number, because it is equal to n+sod(n) for n = 231123398 and 231123407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231123439) 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, 11556162 + ... + 11556181.

It is an arithmetic number, because the mean of its divisors is an integer number (52002774).

Almost surely, 2^231123430 is an apocalyptic number.

231123430 is a deficient number, since it is larger than the sum of its proper divisors (184898762).

231123430 is a wasteful number, since it uses less digits than its factorization.

231123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23112350.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 231123430 is about 15202.7441601837. The cubic root of 231123430 is about 613.6885089029.

Adding to 231123430 its reverse (34321132), we get a palindrome (265444562).

The spelling of 231123430 in words is "two hundred thirty-one million, one hundred twenty-three thousand, four hundred thirty".