131124444413 has 4 divisors (see below), whose sum is σ = 133598490588. Its totient is φ = 128650398240.

The previous prime is 131124444403. The next prime is 131124444419. The reversal of 131124444413 is 314444421131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314444421131 = 19843 ⋅15846617.

It can be written as a sum of positive squares in 2 ways, for example, as 118282342084 + 12842102329 = 343922^2 + 113323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131124444413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131124444413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131124444419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1237023008 + ... + 1237023113.

It is an arithmetic number, because the mean of its divisors is an integer number (33399622647).

Almost surely, 2^131124444413 is an apocalyptic number.

It is an amenable number.

131124444413 is a deficient number, since it is larger than the sum of its proper divisors (2474046175).

131124444413 is an equidigital number, since it uses as much as digits as its factorization.

131124444413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474046174.

The product of its digits is 18432, while the sum is 32.

Adding to 131124444413 its reverse (314444421131), we get a palindrome (445568865544).

The spelling of 131124444413 in words is "one hundred thirty-one billion, one hundred twenty-four million, four hundred forty-four thousand, four hundred thirteen".