71323443011 has 8 divisors (see below), whose sum is σ = 73225782000. Its totient is φ = 69428853760.

The previous prime is 71323442989. The next prime is 71323443013. The reversal of 71323443011 is 11034432317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71323443011 - 2⁶ = 71323442947 is a prime.

It is a super-2 number, since 2×71323443011² (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 (71323443013) 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 7 ways as a sum of consecutive naturals, for example, 1918781 + ... + 1955598.

It is an arithmetic number, because the mean of its divisors is an integer number (9153222750).

Almost surely, 2^71323443011 is an apocalyptic number.

71323443011 is a deficient number, since it is larger than the sum of its proper divisors (1902338989).

71323443011 is a wasteful number, since it uses less digits than its factorization.

71323443011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874869.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 71323443011 its reverse (11034432317), we get a palindrome (82357875328).

The spelling of 71323443011 in words is "seventy-one billion, three hundred twenty-three million, four hundred forty-three thousand, eleven".