71181267312103 has 4 divisors (see below), whose sum is σ = 76656749413048. Its totient is φ = 65705785211160.

The previous prime is 71181267312041. The next prime is 71181267312121. The reversal of 71181267312103 is 30121376218117.

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 71181267312103 - 2²¹ = 71181265214951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71181267312103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71181267318103) 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, 2737741050453 + ... + 2737741050478.

It is an arithmetic number, because the mean of its divisors is an integer number (19164187353262).

Almost surely, 2^{71181267312103} is an apocalyptic number.

71181267312103 is a deficient number, since it is larger than the sum of its proper divisors (5475482100945).

71181267312103 is a wasteful number, since it uses less digits than its factorization.

71181267312103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5475482100944.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 71181267312103 in words is "seventy-one trillion, one hundred eighty-one billion, two hundred sixty-seven million, three hundred twelve thousand, one hundred three".