131131144100 has 144 divisors (see below), whose sum is σ = 316779724800. Its totient is φ = 46717008000.

The previous prime is 131131144063. The next prime is 131131144103. The reversal of 131131144100 is 1441131131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (131131144103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11378141 + ... + 11389659.

It is an arithmetic number, because the mean of its divisors is an integer number (2199859200).

Almost surely, 2^131131144100 is an apocalyptic number.

131131144100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131131144100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158389862400).

131131144100 is an abundant number, since it is smaller than the sum of its proper divisors (185648580700).

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

131131144100 is a wasteful number, since it uses less digits than its factorization.

131131144100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11754 (or 11747 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 131131144100 its reverse (1441131131), we get a palindrome (132572275231).

The spelling of 131131144100 in words is "one hundred thirty-one billion, one hundred thirty-one million, one hundred forty-four thousand, one hundred".