131321321003120 has 80 divisors (see below), whose sum is σ = 306227713609440. Its totient is φ = 52372744461312.

The previous prime is 131321321003069. The next prime is 131321321003143. The reversal of 131321321003120 is 21300123123131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 340394654 + ... + 340780226.

It is an arithmetic number, because the mean of its divisors is an integer number (3827846420118).

Almost surely, 2^{131321321003120} is an apocalyptic number.

131321321003120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131321321003120 is an abundant number, since it is smaller than the sum of its proper divisors (174906392606320).

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

131321321003120 is a wasteful number, since it uses less digits than its factorization.

131321321003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398202 (or 398196 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 131321321003120 its reverse (21300123123131), we get a palindrome (152621444126251).

The spelling of 131321321003120 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, three hundred twenty-one million, three thousand, one hundred twenty".