8602101311981 has 2 divisors, whose sum is σ = 8602101311982. Its totient is φ = 8602101311980.

The previous prime is 8602101311971. The next prime is 8602101312001. The reversal of 8602101311981 is 1891131012068.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8130909675625 + 471191636356 = 2851475^2 + 686434^2 .

It is a cyclic number.

It is not a de Polignac number, because 8602101311981 - 2¹⁸ = 8602101049837 is a prime.

It is a super-2 number, since 2×8602101311981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8602101311971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4301050655990 + 4301050655991.

It is an arithmetic number, because the mean of its divisors is an integer number (4301050655991).

Almost surely, 2^{8602101311981} is an apocalyptic number.

It is an amenable number.

8602101311981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8602101311981 is an equidigital number, since it uses as much as digits as its factorization.

8602101311981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 41.

The spelling of 8602101311981 in words is "eight trillion, six hundred two billion, one hundred one million, three hundred eleven thousand, nine hundred eighty-one".