13601256001381 has 2 divisors, whose sum is σ = 13601256001382. Its totient is φ = 13601256001380.

The previous prime is 13601256001331. The next prime is 13601256001453. The reversal of 13601256001381 is 18310065210631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13595694570756 + 5561430625 = 3687234^2 + 74575^2 .

It is a cyclic number.

It is not a de Polignac number, because 13601256001381 - 2¹¹ = 13601255999333 is a prime.

It is a super-2 number, since 2×13601256001381² (a number of 27 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 13601256001381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13601256001331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6800628000690 + 6800628000691.

It is an arithmetic number, because the mean of its divisors is an integer number (6800628000691).

Almost surely, 2^{13601256001381} is an apocalyptic number.

It is an amenable number.

13601256001381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13601256001381 is an equidigital number, since it uses as much as digits as its factorization.

13601256001381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 13601256001381 in words is "thirteen trillion, six hundred one billion, two hundred fifty-six million, one thousand, three hundred eighty-one".