1302118364161 has 2 divisors, whose sum is σ = 1302118364162. Its totient is φ = 1302118364160.

The previous prime is 1302118364143. The next prime is 1302118364179. The reversal of 1302118364161 is 1614638112031.

It is a balanced prime because it is at equal distance from previous prime (1302118364143) and next prime (1302118364179).

It can be written as a sum of positive squares in only one way, i.e., 1282726130625 + 19392233536 = 1132575^2 + 139256^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302118364161 - 2²⁷ = 1301984146433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1302118364161.

It is not a weakly prime, because it can be changed into another prime (1302118364111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651059182080 + 651059182081.

It is an arithmetic number, because the mean of its divisors is an integer number (651059182081).

Almost surely, 2^{1302118364161} is an apocalyptic number.

It is an amenable number.

1302118364161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302118364161 is an equidigital number, since it uses as much as digits as its factorization.

1302118364161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 1302118364161 in words is "one trillion, three hundred two billion, one hundred eighteen million, three hundred sixty-four thousand, one hundred sixty-one".