71103440441 has 16 divisors (see below), whose sum is σ = 81670983360. Its totient is φ = 61221588480.

The previous prime is 71103440437. The next prime is 71103440461. The reversal of 71103440441 is 14404430117.

It is a cyclic number.

It is not a de Polignac number, because 71103440441 - 2² = 71103440437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71103440411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805985 + ... + 889841.

It is an arithmetic number, because the mean of its divisors is an integer number (5104436460).

Almost surely, 2^71103440441 is an apocalyptic number.

It is an amenable number.

71103440441 is a deficient number, since it is larger than the sum of its proper divisors (10567542919).

71103440441 is a wasteful number, since it uses less digits than its factorization.

71103440441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87944.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 71103440441 its reverse (14404430117), we get a palindrome (85507870558).

The spelling of 71103440441 in words is "seventy-one billion, one hundred three million, four hundred forty thousand, four hundred forty-one".