120605318795891 has 2 divisors, whose sum is σ = 120605318795892. Its totient is φ = 120605318795890.

The previous prime is 120605318795881. The next prime is 120605318795959. The reversal of 120605318795891 is 198597813506021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120605318795891 - 2¹⁰ = 120605318794867 is a prime.

It is not a weakly prime, because it can be changed into another prime (120605318795881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60302659397945 + 60302659397946.

It is an arithmetic number, because the mean of its divisors is an integer number (60302659397946).

Almost surely, 2^{120605318795891} is an apocalyptic number.

120605318795891 is a deficient number, since it is larger than the sum of its proper divisors (1).

120605318795891 is an equidigital number, since it uses as much as digits as its factorization.

120605318795891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32659200, while the sum is 65.

The spelling of 120605318795891 in words is "one hundred twenty trillion, six hundred five billion, three hundred eighteen million, seven hundred ninety-five thousand, eight hundred ninety-one".