120311313361 has 2 divisors, whose sum is σ = 120311313362. Its totient is φ = 120311313360.

The previous prime is 120311313289. The next prime is 120311313383. The reversal of 120311313361 is 163313113021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107817662736 + 12493650625 = 328356^2 + 111775^2 .

It is a cyclic number.

It is not a de Polignac number, because 120311313361 - 2¹¹ = 120311311313 is a prime.

It is not a weakly prime, because it can be changed into another prime (123311313361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60155656680 + 60155656681.

It is an arithmetic number, because the mean of its divisors is an integer number (60155656681).

Almost surely, 2^120311313361 is an apocalyptic number.

It is an amenable number.

120311313361 is a deficient number, since it is larger than the sum of its proper divisors (1).

120311313361 is an equidigital number, since it uses as much as digits as its factorization.

120311313361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 120311313361 its reverse (163313113021), we get a palindrome (283624426382).

The spelling of 120311313361 in words is "one hundred twenty billion, three hundred eleven million, three hundred thirteen thousand, three hundred sixty-one".