71331003 has 8 divisors (see below), whose sum is σ = 105675600. Its totient is φ = 47553984.

The previous prime is 71330983. The next prime is 71331011. The reversal of 71331003 is 30013317.

It is not a de Polignac number, because 71331003 - 2⁸ = 71330747 is a prime.

It is a super-2 number, since 2×71331003² = 10176223977972018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71331803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320918 + ... + 1320971.

It is an arithmetic number, because the mean of its divisors is an integer number (13209450).

Almost surely, 2^71331003 is an apocalyptic number.

71331003 is a deficient number, since it is larger than the sum of its proper divisors (34344597).

71331003 is a wasteful number, since it uses less digits than its factorization.

71331003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641898 (or 2641892 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 18.

The square root of 71331003 is about 8445.7683487058. The cubic root of 71331003 is about 414.7242625678.

The spelling of 71331003 in words is "seventy-one million, three hundred thirty-one thousand, three".