131321002002 has 8 divisors (see below), whose sum is σ = 262642004016. Its totient is φ = 43773667332.

The previous prime is 131321001913. The next prime is 131321002051. The reversal of 131321002002 is 200200123131.

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

131321002002 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10943416828 + ... + 10943416839.

It is an arithmetic number, because the mean of its divisors is an integer number (32830250502).

Almost surely, 2^131321002002 is an apocalyptic number.

131321002002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131321002002 is a wasteful number, since it uses less digits than its factorization.

131321002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21886833672.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 131321002002 its reverse (200200123131), we get a palindrome (331521125133).

The spelling of 131321002002 in words is "one hundred thirty-one billion, three hundred twenty-one million, two thousand, two".