531430204453 has 2 divisors, whose sum is σ = 531430204454. Its totient is φ = 531430204452.

The previous prime is 531430204433. The next prime is 531430204519. The reversal of 531430204453 is 354402034135.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 531210660964 + 219543489 = 728842^2 + 14817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531430204453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531430204433) 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 as a sum of consecutive naturals, namely, 265715102226 + 265715102227.

It is an arithmetic number, because the mean of its divisors is an integer number (265715102227).

Almost surely, 2^531430204453 is an apocalyptic number.

It is an amenable number.

531430204453 is a deficient number, since it is larger than the sum of its proper divisors (1).

531430204453 is an equidigital number, since it uses as much as digits as its factorization.

531430204453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 531430204453 its reverse (354402034135), we get a palindrome (885832238588).

The spelling of 531430204453 in words is "five hundred thirty-one billion, four hundred thirty million, two hundred four thousand, four hundred fifty-three".