131140112020 has 24 divisors (see below), whose sum is σ = 277242525000. Its totient is φ = 52103989632.

The previous prime is 131140112011. The next prime is 131140112027. The reversal of 131140112020 is 20211041131.

It can be written as a sum of positive squares in 4 ways, for example, as 58461316 + 131081650704 = 7646^2 + 362052^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131140111985 and 131140112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131140112027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22000395 + ... + 22006354.

It is an arithmetic number, because the mean of its divisors is an integer number (11551771875).

Almost surely, 2^131140112020 is an apocalyptic number.

131140112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131140112020 is an abundant number, since it is smaller than the sum of its proper divisors (146102412980).

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

131140112020 is a wasteful number, since it uses less digits than its factorization.

131140112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44006907 (or 44006905 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 131140112020 its reverse (20211041131), we get a palindrome (151351153151).

The spelling of 131140112020 in words is "one hundred thirty-one billion, one hundred forty million, one hundred twelve thousand, twenty".