531315002003 has 32 divisors (see below), whose sum is σ = 597731512320. Its totient is φ = 470415876480.

The previous prime is 531315001993. The next prime is 531315002083. The reversal of 531315002003 is 300200513135.

It is a cyclic number.

It is not a de Polignac number, because 531315002003 - 2²⁰ = 531313953427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531315002003.

It is not an unprimeable number, because it can be changed into a prime (531315002083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1385801 + ... + 1727157.

It is an arithmetic number, because the mean of its divisors is an integer number (18679109760).

Almost surely, 2^531315002003 is an apocalyptic number.

531315002003 is a deficient number, since it is larger than the sum of its proper divisors (66416510317).

531315002003 is a wasteful number, since it uses less digits than its factorization.

531315002003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341507.

The product of its (nonzero) digits is 1350, while the sum is 23.

Adding to 531315002003 its reverse (300200513135), we get a palindrome (831515515138).

The spelling of 531315002003 in words is "five hundred thirty-one billion, three hundred fifteen million, two thousand, three".