13438326203149 has 2 divisors, whose sum is σ = 13438326203150. Its totient is φ = 13438326203148.

The previous prime is 13438326203143. The next prime is 13438326203171. The reversal of 13438326203149 is 94130262383431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8686471187524 + 4751855015625 = 2947282^2 + 2179875^2 .

It is a cyclic number.

It is not a de Polignac number, because 13438326203149 - 2²³ = 13438317814541 is a prime.

It is a super-2 number, since 2×13438326203149² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13438326203143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6719163101574 + 6719163101575.

It is an arithmetic number, because the mean of its divisors is an integer number (6719163101575).

Almost surely, 2^{13438326203149} is an apocalyptic number.

It is an amenable number.

13438326203149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13438326203149 is an equidigital number, since it uses as much as digits as its factorization.

13438326203149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 13438326203149 in words is "thirteen trillion, four hundred thirty-eight billion, three hundred twenty-six million, two hundred three thousand, one hundred forty-nine".