131012131312020 has 48 divisors (see below), whose sum is σ = 419238820199808. Its totient is φ = 29945630014080.

The previous prime is 131012131311979. The next prime is 131012131312021. The reversal of 131012131312020 is 20213131210131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012131312021) 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 15 ways as a sum of consecutive naturals, for example, 155966822571 + ... + 155966823410.

It is an arithmetic number, because the mean of its divisors is an integer number (8734142087496).

Almost surely, 2^{131012131312020} is an apocalyptic number.

131012131312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131012131312020 is an abundant number, since it is smaller than the sum of its proper divisors (288226688887788).

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

131012131312020 is a wasteful number, since it uses less digits than its factorization.

131012131312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311933646000 (or 311933645998 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 131012131312020 its reverse (20213131210131), we get a palindrome (151225262522151).

The spelling of 131012131312020 in words is "one hundred thirty-one trillion, twelve billion, one hundred thirty-one million, three hundred twelve thousand, twenty".