331043211313 has 4 divisors (see below), whose sum is σ = 331049838708. Its totient is φ = 331036583920.

The previous prime is 331043211287. The next prime is 331043211337. The reversal of 331043211313 is 313112340133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313112340133 = 17 ⋅18418372949.

It can be written as a sum of positive squares in 2 ways, for example, as 267726560929 + 63316650384 = 517423^2 + 251628^2 .

It is a cyclic number.

It is not a de Polignac number, because 331043211313 - 2¹³ = 331043203121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331043211353) 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, 3238198 + ... + 3338863.

It is an arithmetic number, because the mean of its divisors is an integer number (82762459677).

Almost surely, 2^331043211313 is an apocalyptic number.

It is an amenable number.

331043211313 is a deficient number, since it is larger than the sum of its proper divisors (6627395).

331043211313 is an equidigital number, since it uses as much as digits as its factorization.

331043211313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627394.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 331043211313 its reverse (313112340133), we get a palindrome (644155551446).

The spelling of 331043211313 in words is "three hundred thirty-one billion, forty-three million, two hundred eleven thousand, three hundred thirteen".