10531013 has 2 divisors, whose sum is σ = 10531014. Its totient is φ = 10531012.

The previous prime is 10531009. The next prime is 10531039. The reversal of 10531013 is 31013501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10510564 + 20449 = 3242^2 + 143^2 .

It is an emirp because it is prime and its reverse (31013501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10531013 - 2² = 10531009 is a prime.

It is a super-2 number, since 2×10531013² = 221804469612338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10531063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5265506 + 5265507.

It is an arithmetic number, because the mean of its divisors is an integer number (5265507).

Almost surely, 2^10531013 is an apocalyptic number.

It is an amenable number.

10531013 is a deficient number, since it is larger than the sum of its proper divisors (1).

10531013 is an equidigital number, since it uses as much as digits as its factorization.

10531013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 10531013 is about 3245.1522306357. The cubic root of 10531013 is about 219.1913356038.

Adding to 10531013 its reverse (31013501), we get a palindrome (41544514).

The spelling of 10531013 in words is "ten million, five hundred thirty-one thousand, thirteen".