231225503 has 2 divisors, whose sum is σ = 231225504. Its totient is φ = 231225502.

The previous prime is 231225493. The next prime is 231225521. The reversal of 231225503 is 305522132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231225503 - 2¹⁰ = 231224479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231225703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115612751 + 115612752.

It is an arithmetic number, because the mean of its divisors is an integer number (115612752).

Almost surely, 2^231225503 is an apocalyptic number.

231225503 is a deficient number, since it is larger than the sum of its proper divisors (1).

231225503 is an equidigital number, since it uses as much as digits as its factorization.

231225503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 231225503 is about 15206.1008480149. The cubic root of 231225503 is about 613.7788384263.

Adding to 231225503 its reverse (305522132), we get a palindrome (536747635).

The spelling of 231225503 in words is "two hundred thirty-one million, two hundred twenty-five thousand, five hundred three".