431443302613 has 4 divisors (see below), whose sum is σ = 431528287660. Its totient is φ = 431358317568.

The previous prime is 431443302547. The next prime is 431443302623. The reversal of 431443302613 is 316203344134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316203344134 = 2 ⋅158101672067.

It can be written as a sum of positive squares in 2 ways, for example, as 425080528324 + 6362774289 = 651982^2 + 79767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431443302613 is a prime.

It is a super-2 number, since 2×431443302613² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431443302623) 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 3 ways as a sum of consecutive naturals, for example, 42484908 + ... + 42495061.

It is an arithmetic number, because the mean of its divisors is an integer number (107882071915).

Almost surely, 2^431443302613 is an apocalyptic number.

It is an amenable number.

431443302613 is a deficient number, since it is larger than the sum of its proper divisors (84985047).

431443302613 is an equidigital number, since it uses as much as digits as its factorization.

431443302613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84985046.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 431443302613 its reverse (316203344134), we get a palindrome (747646646747).

The spelling of 431443302613 in words is "four hundred thirty-one billion, four hundred forty-three million, three hundred two thousand, six hundred thirteen".