71297317001 has 2 divisors, whose sum is σ = 71297317002. Its totient is φ = 71297317000.

The previous prime is 71297316997. The next prime is 71297317079. The reversal of 71297317001 is 10071379217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63566511376 + 7730805625 = 252124^2 + 87925^2 .

It is an emirp because it is prime and its reverse (10071379217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71297317001 - 2² = 71297316997 is a prime.

It is not a weakly prime, because it can be changed into another prime (71297317801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35648658500 + 35648658501.

It is an arithmetic number, because the mean of its divisors is an integer number (35648658501).

Almost surely, 2^71297317001 is an apocalyptic number.

It is an amenable number.

71297317001 is a deficient number, since it is larger than the sum of its proper divisors (1).

71297317001 is an equidigital number, since it uses as much as digits as its factorization.

71297317001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18522, while the sum is 38.

The spelling of 71297317001 in words is "seventy-one billion, two hundred ninety-seven million, three hundred seventeen thousand, one".