231130344 has 16 divisors (see below), whose sum is σ = 577825920. Its totient is φ = 77043440.

The previous prime is 231130343. The next prime is 231130397. The reversal of 231130344 is 443031132.

231130344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231130344.

It is not an unprimeable number, because it can be changed into a prime (231130343) 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, 4815192 + ... + 4815239.

It is an arithmetic number, because the mean of its divisors is an integer number (36114120).

Almost surely, 2^231130344 is an apocalyptic number.

231130344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231130344 is an abundant number, since it is smaller than the sum of its proper divisors (346695576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231130344 is a wasteful number, since it uses less digits than its factorization.

231130344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9630440 (or 9630436 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231130344 is about 15202.9715516408. The cubic root of 231130344 is about 613.6946282883.

Adding to 231130344 its reverse (443031132), we get a palindrome (674161476).

The spelling of 231130344 in words is "two hundred thirty-one million, one hundred thirty thousand, three hundred forty-four".