231432103 has 16 divisors (see below), whose sum is σ = 279485440. Its totient is φ = 187207200.

The previous prime is 231432073. The next prime is 231432121. The reversal of 231432103 is 301234132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231432103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231432163) 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 15 ways as a sum of consecutive naturals, for example, 32833 + ... + 39253.

It is an arithmetic number, because the mean of its divisors is an integer number (17467840).

Almost surely, 2^231432103 is an apocalyptic number.

231432103 is a deficient number, since it is larger than the sum of its proper divisors (48053337).

231432103 is a wasteful number, since it uses less digits than its factorization.

231432103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718.

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

The square root of 231432103 is about 15212.8926572168. The cubic root of 231432103 is about 613.9615878172.

Adding to 231432103 its reverse (301234132), we get a palindrome (532666235).

The spelling of 231432103 in words is "two hundred thirty-one million, four hundred thirty-two thousand, one hundred three".