71112033211 has 4 divisors (see below), whose sum is σ = 71272557432. Its totient is φ = 70951508992.

The previous prime is 71112033173. The next prime is 71112033301. The reversal of 71112033211 is 11233021117.

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 71112033211 - 2²⁹ = 70575162299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71112033011) 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, 80261446 + ... + 80262331.

It is an arithmetic number, because the mean of its divisors is an integer number (17818139358).

Almost surely, 2^71112033211 is an apocalyptic number.

71112033211 is a deficient number, since it is larger than the sum of its proper divisors (160524221).

71112033211 is a wasteful number, since it uses less digits than its factorization.

71112033211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160524220.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 71112033211 its reverse (11233021117), we get a palindrome (82345054328).

The spelling of 71112033211 in words is "seventy-one billion, one hundred twelve million, thirty-three thousand, two hundred eleven".