131065183441 has 4 divisors (see below), whose sum is σ = 138774900132. Its totient is φ = 123355466752.

The previous prime is 131065183411. The next prime is 131065183463. The reversal of 131065183441 is 144381560131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144381560131 = 1423 ⋅101462797.

It can be written as a sum of positive squares in 2 ways, for example, as 117977823441 + 13087360000 = 343479^2 + 114400^2 .

It is a cyclic number.

It is not a de Polignac number, because 131065183441 - 2¹⁹ = 131064659153 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 131065183441.

It is not an unprimeable number, because it can be changed into a prime (131065183411) 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, 3854858320 + ... + 3854858353.

It is an arithmetic number, because the mean of its divisors is an integer number (34693725033).

Almost surely, 2^131065183441 is an apocalyptic number.

It is an amenable number.

131065183441 is a deficient number, since it is larger than the sum of its proper divisors (7709716691).

131065183441 is an equidigital number, since it uses as much as digits as its factorization.

131065183441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709716690.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 131065183441 in words is "one hundred thirty-one billion, sixty-five million, one hundred eighty-three thousand, four hundred forty-one".