71205532113 has 8 divisors (see below), whose sum is σ = 94942222848. Its totient is φ = 47469598064.

The previous prime is 71205532109. The next prime is 71205532199. The reversal of 71205532113 is 31123550217.

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 71205532113 - 2² = 71205532109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71205531113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88720 + ... + 387662.

It is an arithmetic number, because the mean of its divisors is an integer number (11867777856).

Almost surely, 2^71205532113 is an apocalyptic number.

It is an amenable number.

71205532113 is a deficient number, since it is larger than the sum of its proper divisors (23736690735).

71205532113 is a wasteful number, since it uses less digits than its factorization.

71205532113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378343.

The product of its (nonzero) digits is 6300, while the sum is 30.

The spelling of 71205532113 in words is "seventy-one billion, two hundred five million, five hundred thirty-two thousand, one hundred thirteen".