13243530437 has 2 divisors, whose sum is σ = 13243530438. Its totient is φ = 13243530436.

The previous prime is 13243530401. The next prime is 13243530473. The reversal of 13243530437 is 73403534231.

Together with next prime (13243530473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (13243530401) and next prime (13243530473).

It can be written as a sum of positive squares in only one way, i.e., 6792067396 + 6451463041 = 82414^2 + 80321^2 .

It is a cyclic number.

It is not a de Polignac number, because 13243530437 - 2¹⁰ = 13243529413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13243530397 and 13243530406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13243530637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621765218 + 6621765219.

It is an arithmetic number, because the mean of its divisors is an integer number (6621765219).

Almost surely, 2^13243530437 is an apocalyptic number.

It is an amenable number.

13243530437 is a deficient number, since it is larger than the sum of its proper divisors (1).

13243530437 is an equidigital number, since it uses as much as digits as its factorization.

13243530437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 35.

The spelling of 13243530437 in words is "thirteen billion, two hundred forty-three million, five hundred thirty thousand, four hundred thirty-seven".