71123303 has 4 divisors (see below), whose sum is σ = 71350848. Its totient is φ = 70895760.

The previous prime is 71123279. The next prime is 71123309. The reversal of 71123303 is 30332117.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30332117 = 467 ⋅64951.

It is a cyclic number.

It is not a de Polignac number, because 71123303 - 2⁸ = 71123047 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 (71123309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113303 + ... + 113928.

It is an arithmetic number, because the mean of its divisors is an integer number (17837712).

Almost surely, 2^71123303 is an apocalyptic number.

71123303 is a deficient number, since it is larger than the sum of its proper divisors (227545).

71123303 is a wasteful number, since it uses less digits than its factorization.

71123303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227544.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 71123303 is about 8433.4632862188. The cubic root of 71123303 is about 414.3213430034.

The spelling of 71123303 in words is "seventy-one million, one hundred twenty-three thousand, three hundred three".