131241314440 has 32 divisors (see below), whose sum is σ = 312663133080. Its totient is φ = 49408494592.

The previous prime is 131241314437. The next prime is 131241314447. The reversal of 131241314440 is 44413142131.

It can be written as a sum of positive squares in 4 ways, for example, as 77494310884 + 53747003556 = 278378^2 + 231834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131241314399 and 131241314408.

It is not an unprimeable number, because it can be changed into a prime (131241314447) 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 7 ways as a sum of consecutive naturals, for example, 96500287 + ... + 96501646.

Almost surely, 2^131241314440 is an apocalyptic number.

131241314440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131241314440 is an abundant number, since it is smaller than the sum of its proper divisors (181421818640).

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

131241314440 is a wasteful number, since it uses less digits than its factorization.

131241314440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193001961 (or 193001957 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 131241314440 its reverse (44413142131), we get a palindrome (175654456571).

The spelling of 131241314440 in words is "one hundred thirty-one billion, two hundred forty-one million, three hundred fourteen thousand, four hundred forty".