71002003111 has 4 divisors (see below), whose sum is σ = 76463695672. Its totient is φ = 65540310552.

The previous prime is 71002003103. The next prime is 71002003153. The reversal of 71002003111 is 11130020017.

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

It is a cyclic number.

It is not a de Polignac number, because 71002003111 - 2³ = 71002003103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71002003511) 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, 2730846261 + ... + 2730846286.

It is an arithmetic number, because the mean of its divisors is an integer number (19115923918).

Almost surely, 2^71002003111 is an apocalyptic number.

71002003111 is a deficient number, since it is larger than the sum of its proper divisors (5461692561).

71002003111 is a wasteful number, since it uses less digits than its factorization.

71002003111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461692560.

The product of its (nonzero) digits is 42, while the sum is 16.

Adding to 71002003111 its reverse (11130020017), we get a palindrome (82132023128).

The spelling of 71002003111 in words is "seventy-one billion, two million, three thousand, one hundred eleven".