71321388803 has 12 divisors (see below), whose sum is σ = 83965288680. Its totient is φ = 60396077952.

The previous prime is 71321388763. The next prime is 71321388851. The reversal of 71321388803 is 30888312317.

It is not a de Polignac number, because 71321388803 - 2¹⁶ = 71321323267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71321388503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8764238 + ... + 8772371.

It is an arithmetic number, because the mean of its divisors is an integer number (6997107390).

Almost surely, 2^71321388803 is an apocalyptic number.

71321388803 is a deficient number, since it is larger than the sum of its proper divisors (12643899877).

71321388803 is a wasteful number, since it uses less digits than its factorization.

71321388803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17536706 (or 17536699 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 71321388803 in words is "seventy-one billion, three hundred twenty-one million, three hundred eighty-eight thousand, eight hundred three".