380708668121 has 2 divisors, whose sum is σ = 380708668122. Its totient is φ = 380708668120.

The previous prime is 380708668117. The next prime is 380708668133. The reversal of 380708668121 is 121866807083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341687011600 + 39021656521 = 584540^2 + 197539^2 .

It is a cyclic number.

It is not a de Polignac number, because 380708668121 - 2² = 380708668117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 380708668121.

It is not a weakly prime, because it can be changed into another prime (380708668181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190354334060 + 190354334061.

It is an arithmetic number, because the mean of its divisors is an integer number (190354334061).

Almost surely, 2^380708668121 is an apocalyptic number.

It is an amenable number.

380708668121 is a deficient number, since it is larger than the sum of its proper divisors (1).

380708668121 is an equidigital number, since it uses as much as digits as its factorization.

380708668121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 380708668121 in words is "three hundred eighty billion, seven hundred eight million, six hundred sixty-eight thousand, one hundred twenty-one".