13601220601 has 2 divisors, whose sum is σ = 13601220602. Its totient is φ = 13601220600.

The previous prime is 13601220599. The next prime is 13601220629. The reversal of 13601220601 is 10602210631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11529605376 + 2071615225 = 107376^2 + 45515^2 .

It is a cyclic number.

It is not a de Polignac number, because 13601220601 - 2¹ = 13601220599 is a prime.

Together with 13601220599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13601220641) 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, 6800610300 + 6800610301.

It is an arithmetic number, because the mean of its divisors is an integer number (6800610301).

Almost surely, 2^13601220601 is an apocalyptic number.

It is an amenable number.

13601220601 is a deficient number, since it is larger than the sum of its proper divisors (1).

13601220601 is an equidigital number, since it uses as much as digits as its factorization.

13601220601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 13601220601 in words is "thirteen billion, six hundred one million, two hundred twenty thousand, six hundred one".