131302203121020 has 96 divisors (see below), whose sum is σ = 377602135561728. Its totient is φ = 34065831681792.

The previous prime is 131302203121003. The next prime is 131302203121073. The reversal of 131302203121020 is 20121302203131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41550537 + ... + 44598783.

It is an arithmetic number, because the mean of its divisors is an integer number (3933355578768).

Almost surely, 2^{131302203121020} is an apocalyptic number.

131302203121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131302203121020 is an abundant number, since it is smaller than the sum of its proper divisors (246299932440708).

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

131302203121020 is a wasteful number, since it uses less digits than its factorization.

131302203121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067699 (or 3067697 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131302203121020 its reverse (20121302203131), we get a palindrome (151423505324151).

The spelling of 131302203121020 in words is "one hundred thirty-one trillion, three hundred two billion, two hundred three million, one hundred twenty-one thousand, twenty".