531314020213 has 2 divisors, whose sum is σ = 531314020214. Its totient is φ = 531314020212.

The previous prime is 531314020183. The next prime is 531314020241. The reversal of 531314020213 is 312020413135.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330145623889 + 201168396324 = 574583^2 + 448518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531314020213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531314020253) 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, 265657010106 + 265657010107.

It is an arithmetic number, because the mean of its divisors is an integer number (265657010107).

Almost surely, 2^531314020213 is an apocalyptic number.

It is an amenable number.

531314020213 is a deficient number, since it is larger than the sum of its proper divisors (1).

531314020213 is an equidigital number, since it uses as much as digits as its factorization.

531314020213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 531314020213 its reverse (312020413135), we get a palindrome (843334433348).

The spelling of 531314020213 in words is "five hundred thirty-one billion, three hundred fourteen million, twenty thousand, two hundred thirteen".