231430103 has 4 divisors (see below), whose sum is σ = 232816080. Its totient is φ = 230044128.

The previous prime is 231430099. The next prime is 231430123. The reversal of 231430103 is 301034132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231430103 - 2² = 231430099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231430123) 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 3 ways as a sum of consecutive naturals, for example, 692738 + ... + 693071.

It is an arithmetic number, because the mean of its divisors is an integer number (58204020).

Almost surely, 2^231430103 is an apocalyptic number.

231430103 is a deficient number, since it is larger than the sum of its proper divisors (1385977).

231430103 is a wasteful number, since it uses less digits than its factorization.

231430103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385976.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231430103 is about 15212.8269233565. The cubic root of 231430103 is about 613.9598192255.

Adding to 231430103 its reverse (301034132), we get a palindrome (532464235).

The spelling of 231430103 in words is "two hundred thirty-one million, four hundred thirty thousand, one hundred three".