131433335413 has 4 divisors (see below), whose sum is σ = 131439689388. Its totient is φ = 131426981440.

The previous prime is 131433335399. The next prime is 131433335419. The reversal of 131433335413 is 314533334131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314533334131 = 29 ⋅10845977039.

It can be written as a sum of positive squares in 2 ways, for example, as 30602953969 + 100830381444 = 174937^2 + 317538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131433335413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131433335419) 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, 3145858 + ... + 3187363.

It is an arithmetic number, because the mean of its divisors is an integer number (32859922347).

Almost surely, 2^131433335413 is an apocalyptic number.

It is an amenable number.

131433335413 is a deficient number, since it is larger than the sum of its proper divisors (6353975).

131433335413 is an equidigital number, since it uses as much as digits as its factorization.

131433335413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6353974.

The product of its digits is 58320, while the sum is 34.

Adding to 131433335413 its reverse (314533334131), we get a palindrome (445966669544).

The spelling of 131433335413 in words is "one hundred thirty-one billion, four hundred thirty-three million, three hundred thirty-five thousand, four hundred thirteen".