131213223232020 has 72 divisors (see below), whose sum is σ = 398217449710080. Its totient is φ = 34972258276800.

The previous prime is 131213223232019. The next prime is 131213223232081. The reversal of 131213223232020 is 20232322312131.

131213223232020 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 132 + 2 + 323 + 202 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186466440 + ... + 187168799.

It is an arithmetic number, because the mean of its divisors is an integer number (5530797912640).

Almost surely, 2^{131213223232020} is an apocalyptic number.

131213223232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131213223232020 is an abundant number, since it is smaller than the sum of its proper divisors (267004226478060).

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

131213223232020 is a wasteful number, since it uses less digits than its factorization.

131213223232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373637205 (or 373637200 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 131213223232020 its reverse (20232322312131), we get a palindrome (151445545544151).

The spelling of 131213223232020 in words is "one hundred thirty-one trillion, two hundred thirteen billion, two hundred twenty-three million, two hundred thirty-two thousand, twenty".