71112070071 has 20 divisors (see below), whose sum is σ = 121404734352. Its totient is φ = 40635468288.

The previous prime is 71112070019. The next prime is 71112070079. The reversal of 71112070071 is 17007021117.

It is not a de Polignac number, because 71112070071 - 2⁹ = 71112069559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71112070079) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62708490 + ... + 62709623.

Almost surely, 2^71112070071 is an apocalyptic number.

71112070071 is a deficient number, since it is larger than the sum of its proper divisors (50292664281).

71112070071 is a wasteful number, since it uses less digits than its factorization.

71112070071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125418132 (or 125418123 counting only the distinct ones).

The product of its (nonzero) digits is 686, while the sum is 27.

Adding to 71112070071 its reverse (17007021117), we get a palindrome (88119091188).

The spelling of 71112070071 in words is "seventy-one billion, one hundred twelve million, seventy thousand, seventy-one".