131345284733 has 4 divisors (see below), whose sum is σ = 141448768188. Its totient is φ = 121241801280.

The previous prime is 131345284709. The next prime is 131345284747. The reversal of 131345284733 is 337482543131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 337482543131 = 104831 ⋅3219301.

It can be written as a sum of positive squares in 2 ways, for example, as 11942555524 + 119402729209 = 109282^2 + 345547^2 .

It is a cyclic number.

It is not a de Polignac number, because 131345284733 - 2⁶ = 131345284669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131345224733) 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, 5051741708 + ... + 5051741733.

It is an arithmetic number, because the mean of its divisors is an integer number (35362192047).

Almost surely, 2^131345284733 is an apocalyptic number.

131345284733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131345284733 is a deficient number, since it is larger than the sum of its proper divisors (10103483455).

131345284733 is a wasteful number, since it uses less digits than its factorization.

131345284733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10103483454.

The product of its digits is 725760, while the sum is 44.

The spelling of 131345284733 in words is "one hundred thirty-one billion, three hundred forty-five million, two hundred eighty-four thousand, seven hundred thirty-three".