131044243040 has 24 divisors (see below), whose sum is σ = 309592024560. Its totient is φ = 52417697152.

The previous prime is 131044242947. The next prime is 131044243049. The reversal of 131044243040 is 40342440131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131044243049) 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 3 ways as a sum of consecutive naturals, for example, 409513100 + ... + 409513419.

It is an arithmetic number, because the mean of its divisors is an integer number (12899667690).

Almost surely, 2^131044243040 is an apocalyptic number.

131044243040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131044243040 is an abundant number, since it is smaller than the sum of its proper divisors (178547781520).

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

131044243040 is an equidigital number, since it uses as much as digits as its factorization.

131044243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819026534 (or 819026526 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 131044243040 its reverse (40342440131), we get a palindrome (171386683171).

The spelling of 131044243040 in words is "one hundred thirty-one billion, forty-four million, two hundred forty-three thousand, forty".