13003520381 has 2 divisors, whose sum is σ = 13003520382. Its totient is φ = 13003520380.

The previous prime is 13003520363. The next prime is 13003520417. The reversal of 13003520381 is 18302530031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8951052100 + 4052468281 = 94610^2 + 63659^2 .

It is a cyclic number.

It is not a de Polignac number, because 13003520381 - 2¹⁰ = 13003519357 is a prime.

It is a super-2 number, since 2×13003520381² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13003520381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13003520311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6501760190 + 6501760191.

It is an arithmetic number, because the mean of its divisors is an integer number (6501760191).

Almost surely, 2^13003520381 is an apocalyptic number.

It is an amenable number.

13003520381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13003520381 is an equidigital number, since it uses as much as digits as its factorization.

13003520381 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 26.

The spelling of 13003520381 in words is "thirteen billion, three million, five hundred twenty thousand, three hundred eighty-one".