120648137773 has 2 divisors, whose sum is σ = 120648137774. Its totient is φ = 120648137772.

The previous prime is 120648137749. The next prime is 120648137789. The reversal of 120648137773 is 377731846021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109784870244 + 10863267529 = 331338^2 + 104227^2 .

It is an emirp because it is prime and its reverse (377731846021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120648137773 - 2¹⁷ = 120648006701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120648137873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60324068886 + 60324068887.

It is an arithmetic number, because the mean of its divisors is an integer number (60324068887).

Almost surely, 2^120648137773 is an apocalyptic number.

It is an amenable number.

120648137773 is a deficient number, since it is larger than the sum of its proper divisors (1).

120648137773 is an equidigital number, since it uses as much as digits as its factorization.

120648137773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 120648137773 in words is "one hundred twenty billion, six hundred forty-eight million, one hundred thirty-seven thousand, seven hundred seventy-three".