131131444000 has 48 divisors (see below), whose sum is σ = 322189967736. Its totient is φ = 52452576000.

The previous prime is 131131443931. The next prime is 131131444021. The reversal of 131131444000 is 444131131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22998329104 + 108133114896 = 151652^2 + 328836^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16387431 + ... + 16395430.

Almost surely, 2^131131444000 is an apocalyptic number.

131131444000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131131444000 is an abundant number, since it is smaller than the sum of its proper divisors (191058523736).

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

131131444000 is an equidigital number, since it uses as much as digits as its factorization.

131131444000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32782886 (or 32782868 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 131131444000 its reverse (444131131), we get a palindrome (131575575131).

It can be divided in two parts, 131 and 131444000, that added together give a palindrome (131444131).

The spelling of 131131444000 in words is "one hundred thirty-one billion, one hundred thirty-one million, four hundred forty-four thousand".