71011000001 has 4 divisors (see below), whose sum is σ = 71287307652. Its totient is φ = 70734692352.

The previous prime is 71010999971. The next prime is 71011000019. The reversal of 71011000001 is 10000011017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54830905600 + 16180094401 = 234160^2 + 127201^2 .

It is a cyclic number.

It is not a de Polignac number, because 71011000001 - 2²² = 71006805697 is a prime.

It is a super-2 number, since 2×71011000001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71011000031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138153440 + ... + 138153953.

It is an arithmetic number, because the mean of its divisors is an integer number (17821826913).

Almost surely, 2^71011000001 is an apocalyptic number.

It is an amenable number.

71011000001 is a deficient number, since it is larger than the sum of its proper divisors (276307651).

71011000001 is a wasteful number, since it uses less digits than its factorization.

71011000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276307650.

The product of its (nonzero) digits is 7, while the sum is 11.

Adding to 71011000001 its reverse (10000011017), we get a palindrome (81011011018).

The spelling of 71011000001 in words is "seventy-one billion, eleven million, one", and thus it is an aban number and an uban number.