131431340000 has 120 divisors (see below), whose sum is σ = 325136179368. Its totient is φ = 52280640000.

The previous prime is 131431339979. The next prime is 131431340101. The reversal of 131431340000 is 43134131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3601847 + ... + 3638153.

Almost surely, 2^131431340000 is an apocalyptic number.

131431340000 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 131431340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162568089684).

131431340000 is an abundant number, since it is smaller than the sum of its proper divisors (193704839368).

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

131431340000 is an equidigital number, since it uses as much as digits as its factorization.

131431340000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36518 (or 36495 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131431340000 its reverse (43134131), we get a palindrome (131474474131).

The spelling of 131431340000 in words is "one hundred thirty-one billion, four hundred thirty-one million, three hundred forty thousand".