61242220009013 has 2 divisors, whose sum is σ = 61242220009014. Its totient is φ = 61242220009012.

The previous prime is 61242220008923. The next prime is 61242220009021. The reversal of 61242220009013 is 31090002224216.

61242220009013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59299271162404 + 1942948846609 = 7700602^2 + 1393897^2 .

It is a cyclic number.

It is not a de Polignac number, because 61242220009013 - 2⁴⁰ = 60142708381237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61242220009063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30621110004506 + 30621110004507.

It is an arithmetic number, because the mean of its divisors is an integer number (30621110004507).

Almost surely, 2^{61242220009013} is an apocalyptic number.

It is an amenable number.

61242220009013 is a deficient number, since it is larger than the sum of its proper divisors (1).

61242220009013 is an equidigital number, since it uses as much as digits as its factorization.

61242220009013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 61242220009013 in words is "sixty-one trillion, two hundred forty-two billion, two hundred twenty million, nine thousand, thirteen".