5431313533331 has 4 divisors (see below), whose sum is σ = 6207215466672. Its totient is φ = 4655411599992.

The previous prime is 5431313533319. The next prime is 5431313533333. The reversal of 5431313533331 is 1333353131345.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5431313533331 is a prime.

It is a super-2 number, since 2×5431313533331² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5431313533333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387950966660 + ... + 387950966673.

It is an arithmetic number, because the mean of its divisors is an integer number (1551803866668).

Almost surely, 2^{5431313533331} is an apocalyptic number.

5431313533331 is a deficient number, since it is larger than the sum of its proper divisors (775901933341).

5431313533331 is an equidigital number, since it uses as much as digits as its factorization.

5431313533331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775901933340.

The product of its digits is 218700, while the sum is 38.

Adding to 5431313533331 its reverse (1333353131345), we get a palindrome (6764666664676).

The spelling of 5431313533331 in words is "five trillion, four hundred thirty-one billion, three hundred thirteen million, five hundred thirty-three thousand, three hundred thirty-one".