231003135 has 24 divisors (see below), whose sum is σ = 436806864. Its totient is φ = 112001280.

The previous prime is 231003133. The next prime is 231003151. The reversal of 231003135 is 531300132.

It is not a de Polignac number, because 231003135 - 2¹ = 231003133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231003133) 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 23 ways as a sum of consecutive naturals, for example, 232842 + ... + 233831.

It is an arithmetic number, because the mean of its divisors is an integer number (18200286).

Almost surely, 2^231003135 is an apocalyptic number.

231003135 is a deficient number, since it is larger than the sum of its proper divisors (205803729).

231003135 is a wasteful number, since it uses less digits than its factorization.

231003135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466695 (or 466692 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 231003135 is about 15198.7872871489. The cubic root of 231003135 is about 613.5820196693.

Adding to 231003135 its reverse (531300132), we get a palindrome (762303267).

The spelling of 231003135 in words is "two hundred thirty-one million, three thousand, one hundred thirty-five".