120520055145481 has 2 divisors, whose sum is σ = 120520055145482. Its totient is φ = 120520055145480.

The previous prime is 120520055145449. The next prime is 120520055145593. The reversal of 120520055145481 is 184541550025021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110343259713600 + 10176795431881 = 10504440^2 + 3190109^2 .

It is a cyclic number.

It is not a de Polignac number, because 120520055145481 - 2⁵ = 120520055145449 is a prime.

It is a super-2 number, since 2×120520055145481² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120520055145431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60260027572740 + 60260027572741.

It is an arithmetic number, because the mean of its divisors is an integer number (60260027572741).

Almost surely, 2^{120520055145481} is an apocalyptic number.

It is an amenable number.

120520055145481 is a deficient number, since it is larger than the sum of its proper divisors (1).

120520055145481 is an equidigital number, since it uses as much as digits as its factorization.

120520055145481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320000, while the sum is 43.

The spelling of 120520055145481 in words is "one hundred twenty trillion, five hundred twenty billion, fifty-five million, one hundred forty-five thousand, four hundred eighty-one".