531340305061 has 2 divisors, whose sum is σ = 531340305062. Its totient is φ = 531340305060.

The previous prime is 531340304981. The next prime is 531340305077. The reversal of 531340305061 is 160503043135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 510688890625 + 20651414436 = 714625^2 + 143706^2 .

It is a cyclic number.

It is not a de Polignac number, because 531340305061 - 2²⁹ = 530803434149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531340305091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265670152530 + 265670152531.

It is an arithmetic number, because the mean of its divisors is an integer number (265670152531).

Almost surely, 2^531340305061 is an apocalyptic number.

It is an amenable number.

531340305061 is a deficient number, since it is larger than the sum of its proper divisors (1).

531340305061 is an equidigital number, since it uses as much as digits as its factorization.

531340305061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 531340305061 its reverse (160503043135), we get a palindrome (691843348196).

The spelling of 531340305061 in words is "five hundred thirty-one billion, three hundred forty million, three hundred five thousand, sixty-one".