231330103 has 2 divisors, whose sum is σ = 231330104. Its totient is φ = 231330102.

The previous prime is 231330059. The next prime is 231330109. The reversal of 231330103 is 301033132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231330103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231330109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115665051 + 115665052.

It is an arithmetic number, because the mean of its divisors is an integer number (115665052).

Almost surely, 2^231330103 is an apocalyptic number.

231330103 is a deficient number, since it is larger than the sum of its proper divisors (1).

231330103 is an equidigital number, since it uses as much as digits as its factorization.

231330103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 231330103 is about 15209.5398681222. The cubic root of 231330103 is about 613.8713766443.

Adding to 231330103 its reverse (301033132), we get a palindrome (532363235).

The spelling of 231330103 in words is "two hundred thirty-one million, three hundred thirty thousand, one hundred three".