71320120200 has 144 divisors (see below), whose sum is σ = 273733462080. Its totient is φ = 16301738880.

The previous prime is 71320120163. The next prime is 71320120219. The reversal of 71320120200 is 202102317.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2817564 + ... + 2842763.

It is an arithmetic number, because the mean of its divisors is an integer number (1900926820).

Almost surely, 2^71320120200 is an apocalyptic number.

71320120200 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71320120200 is an abundant number, since it is smaller than the sum of its proper divisors (202413341880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71320120200 is a wasteful number, since it uses less digits than its factorization.

71320120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660356 (or 5660344 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

Adding to 71320120200 its reverse (202102317), we get a palindrome (71522222517).

The spelling of 71320120200 in words is "seventy-one billion, three hundred twenty million, one hundred twenty thousand, two hundred".