131000321041020 has 96 divisors (see below), whose sum is σ = 408502161930240. Its totient is φ = 34852366866240.

The previous prime is 131000321041001. The next prime is 131000321041021. The reversal of 131000321041020 is 20140123000131.

131000321041020 is a `hidden beast` number, since 1 + 310 + 0 + 0 + 321 + 0 + 4 + 10 + 20 = 666.

It is a super-2 number, since 2×131000321041020² (a number of 29 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 131000321040984 and 131000321041002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000321041021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281197872 + ... + 281663351.

It is an arithmetic number, because the mean of its divisors is an integer number (4255230853440).

Almost surely, 2^{131000321041020} is an apocalyptic number.

131000321041020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000321041020 is an abundant number, since it is smaller than the sum of its proper divisors (277501840889220).

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

131000321041020 is a wasteful number, since it uses less digits than its factorization.

131000321041020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562861672 (or 562861664 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 131000321041020 its reverse (20140123000131), we get a palindrome (151140444041151).

The spelling of 131000321041020 in words is "one hundred thirty-one trillion, three hundred twenty-one million, forty-one thousand, twenty".