71232223217 has 4 divisors (see below), whose sum is σ = 71234637120. Its totient is φ = 71229809316.

The previous prime is 71232223213. The next prime is 71232223229.

71232223217 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71232223217 - 2² = 71232223213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71232223213) 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, 1162133 + ... + 1221890.

It is an arithmetic number, because the mean of its divisors is an integer number (17808659280).

Almost surely, 2^71232223217 is an apocalyptic number.

It is an amenable number.

71232223217 is a deficient number, since it is larger than the sum of its proper divisors (2413903).

71232223217 is a wasteful number, since it uses less digits than its factorization.

71232223217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413902.

The product of its digits is 14112, while the sum is 32.

The spelling of 71232223217 in words is "seventy-one billion, two hundred thirty-two million, two hundred twenty-three thousand, two hundred seventeen".