71144115203 has 4 divisors (see below), whose sum is σ = 81307560240. Its totient is φ = 60980670168.

The previous prime is 71144115193. The next prime is 71144115227. The reversal of 71144115203 is 30251144117.

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 71144115203 - 2²² = 71139920899 is a prime.

It is a super-2 number, since 2×71144115203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71144115503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5081722508 + ... + 5081722521.

It is an arithmetic number, because the mean of its divisors is an integer number (20326890060).

Almost surely, 2^71144115203 is an apocalyptic number.

71144115203 is a deficient number, since it is larger than the sum of its proper divisors (10163445037).

71144115203 is a wasteful number, since it uses less digits than its factorization.

71144115203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163445036.

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 71144115203 in words is "seventy-one billion, one hundred forty-four million, one hundred fifteen thousand, two hundred three".