71312135063 has 4 divisors (see below), whose sum is σ = 76797683928. Its totient is φ = 65826586200.

The previous prime is 71312135051. The next prime is 71312135093. The reversal of 71312135063 is 36053121317.

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 71312135063 - 2¹⁴ = 71312118679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71312135003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2742774413 + ... + 2742774438.

It is an arithmetic number, because the mean of its divisors is an integer number (19199420982).

Almost surely, 2^71312135063 is an apocalyptic number.

71312135063 is a deficient number, since it is larger than the sum of its proper divisors (5485548865).

71312135063 is a wasteful number, since it uses less digits than its factorization.

71312135063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485548864.

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 71312135063 in words is "seventy-one billion, three hundred twelve million, one hundred thirty-five thousand, sixty-three".