71012303 has 4 divisors (see below), whose sum is σ = 71223360. Its totient is φ = 70801248.

The previous prime is 71012257. The next prime is 71012309. The reversal of 71012303 is 30321017.

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 71012303 - 2⁶ = 71012239 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 (71012309) 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, 105023 + ... + 105696.

It is an arithmetic number, because the mean of its divisors is an integer number (17805840).

Almost surely, 2^71012303 is an apocalyptic number.

71012303 is a deficient number, since it is larger than the sum of its proper divisors (211057).

71012303 is a wasteful number, since it uses less digits than its factorization.

71012303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211056.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 71012303 is about 8426.8797902901. The cubic root of 71012303 is about 414.1056911575.

The spelling of 71012303 in words is "seventy-one million, twelve thousand, three hundred three".