231311003 has 16 divisors (see below), whose sum is σ = 288817920. Its totient is φ = 179973600.

The previous prime is 231310991. The next prime is 231311009. The reversal of 231311003 is 300113132.

It is a cyclic number.

It is not a de Polignac number, because 231311003 - 2¹⁰ = 231309979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231311009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61388 + ... + 65046.

It is an arithmetic number, because the mean of its divisors is an integer number (18051120).

Almost surely, 2^231311003 is an apocalyptic number.

231311003 is a deficient number, since it is larger than the sum of its proper divisors (57506917).

231311003 is a wasteful number, since it uses less digits than its factorization.

231311003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 231311003 is about 15208.9119597689. The cubic root of 231311003 is about 613.8544812124.

Adding to 231311003 its reverse (300113132), we get a palindrome (531424135).

The spelling of 231311003 in words is "two hundred thirty-one million, three hundred eleven thousand, three".