71303322011 has 4 divisors (see below), whose sum is σ = 72307594224. Its totient is φ = 70299049800.

The previous prime is 71303321987. The next prime is 71303322031. The reversal of 71303322011 is 11022330317.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71303322011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71303322031) 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, 502136000 + ... + 502136141.

It is an arithmetic number, because the mean of its divisors is an integer number (18076898556).

Almost surely, 2^71303322011 is an apocalyptic number.

71303322011 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

71303322011 is a deficient number, since it is larger than the sum of its proper divisors (1004272213).

71303322011 is a wasteful number, since it uses less digits than its factorization.

71303322011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004272212.

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 71303322011 its reverse (11022330317), we get a palindrome (82325652328).

The spelling of 71303322011 in words is "seventy-one billion, three hundred three million, three hundred twenty-two thousand, eleven".