231603043 has 8 divisors (see below), whose sum is σ = 265846880. Its totient is φ = 197648640.

The previous prime is 231603041. The next prime is 231603049. The reversal of 231603043 is 340306132.

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

It is not a de Polignac number, because 231603043 - 2¹ = 231603041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231603041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70638 + ... + 73843.

It is an arithmetic number, because the mean of its divisors is an integer number (33230860).

Almost surely, 2^231603043 is an apocalyptic number.

231603043 is a deficient number, since it is larger than the sum of its proper divisors (34243837).

231603043 is a wasteful number, since it uses less digits than its factorization.

231603043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144717.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 231603043 is about 15218.5098810626. The cubic root of 231603043 is about 614.1127117157.

Adding to 231603043 its reverse (340306132), we get a palindrome (571909175).

The spelling of 231603043 in words is "two hundred thirty-one million, six hundred three thousand, forty-three".