71333031222133 has 4 divisors (see below), whose sum is σ = 71333086695948. Its totient is φ = 71332975748320.

The previous prime is 71333031222127. The next prime is 71333031222149. The reversal of 71333031222133 is 33122213033317.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14481084381604 + 56851946840529 = 3805402^2 + 7540023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71333031222133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71333031222113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25761166 + ... + 28395487.

It is an arithmetic number, because the mean of its divisors is an integer number (17833271673987).

Almost surely, 2^{71333031222133} is an apocalyptic number.

It is an amenable number.

71333031222133 is a deficient number, since it is larger than the sum of its proper divisors (55473815).

71333031222133 is a wasteful number, since it uses less digits than its factorization.

71333031222133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55473814.

The product of its (nonzero) digits is 40824, while the sum is 34.

The spelling of 71333031222133 in words is "seventy-one trillion, three hundred thirty-three billion, thirty-one million, two hundred twenty-two thousand, one hundred thirty-three".