13503442220441 has 2 divisors, whose sum is σ = 13503442220442. Its totient is φ = 13503442220440.

The previous prime is 13503442220423. The next prime is 13503442220461. The reversal of 13503442220441 is 14402224430531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7503901455625 + 5999540764816 = 2739325^2 + 2449396^2 .

It is a cyclic number.

It is not a de Polignac number, because 13503442220441 - 2²² = 13503438026137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13503442220461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6751721110220 + 6751721110221.

It is an arithmetic number, because the mean of its divisors is an integer number (6751721110221).

Almost surely, 2^{13503442220441} is an apocalyptic number.

It is an amenable number.

13503442220441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13503442220441 is an equidigital number, since it uses as much as digits as its factorization.

13503442220441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 13503442220441 its reverse (14402224430531), we get a palindrome (27905666650972).

The spelling of 13503442220441 in words is "thirteen trillion, five hundred three billion, four hundred forty-two million, two hundred twenty thousand, four hundred forty-one".