71431007203 has 4 divisors (see below), whose sum is σ = 71571343680. Its totient is φ = 71290670728.

The previous prime is 71431007171. The next prime is 71431007227. The reversal of 71431007203 is 30270013417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30270013417 = 7 ⋅4324287631.

It is a cyclic number.

It is not a de Polignac number, because 71431007203 - 2⁵ = 71431007171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71431007803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70167475 + ... + 70168492.

It is an arithmetic number, because the mean of its divisors is an integer number (17892835920).

Almost surely, 2^71431007203 is an apocalyptic number.

71431007203 is a deficient number, since it is larger than the sum of its proper divisors (140336477).

71431007203 is a wasteful number, since it uses less digits than its factorization.

71431007203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140336476.

The product of its (nonzero) digits is 3528, while the sum is 28.

The spelling of 71431007203 in words is "seventy-one billion, four hundred thirty-one million, seven thousand, two hundred three".