231016603 has 16 divisors (see below), whose sum is σ = 240026400. Its totient is φ = 222241536.

The previous prime is 231016589. The next prime is 231016607. The reversal of 231016603 is 306610132.

It is a cyclic number.

It is not a de Polignac number, because 231016603 - 2⁹ = 231016091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231016607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728601 + ... + 728917.

It is an arithmetic number, because the mean of its divisors is an integer number (15001650).

Almost surely, 2^231016603 is an apocalyptic number.

231016603 is a deficient number, since it is larger than the sum of its proper divisors (9009797).

231016603 is a wasteful number, since it uses less digits than its factorization.

231016603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 231016603 is about 15199.2303423562. The cubic root of 231016603 is about 613.5939438394.

Adding to 231016603 its reverse (306610132), we get a palindrome (537626735).

The spelling of 231016603 in words is "two hundred thirty-one million, sixteen thousand, six hundred three".