131000304000020 has 96 divisors (see below), whose sum is σ = 338588913175296. Its totient is φ = 41459006822400.

The previous prime is 131000304000019. The next prime is 131000304000113. The reversal of 131000304000020 is 20000403000131.

It is a super-2 number, since 2×131000304000020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 131000303999959 and 131000304000004.

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 31 ways as a sum of consecutive naturals, for example, 206673980 + ... + 207306860.

It is an arithmetic number, because the mean of its divisors is an integer number (3526967845576).

Almost surely, 2^{131000304000020} is an apocalyptic number.

131000304000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000304000020 is an abundant number, since it is smaller than the sum of its proper divisors (207588609175276).

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

131000304000020 is a wasteful number, since it uses less digits than its factorization.

131000304000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746641 (or 746639 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 131000304000020 its reverse (20000403000131), we get a palindrome (151000707000151).

The spelling of 131000304000020 in words is "one hundred thirty-one trillion, three hundred four million, twenty", and thus it is an aban number.