331450425013 has 4 divisors (see below), whose sum is σ = 335990841868. Its totient is φ = 326910008160.

The previous prime is 331450424993. The next prime is 331450425043. The reversal of 331450425013 is 310524054133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310524054133 = 43 ⋅7221489631.

It can be written as a sum of positive squares in 2 ways, for example, as 126058372209 + 205392052804 = 355047^2 + 453202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331450425013 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 (331450425043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2270208318 + ... + 2270208463.

It is an arithmetic number, because the mean of its divisors is an integer number (83997710467).

Almost surely, 2^331450425013 is an apocalyptic number.

It is an amenable number.

331450425013 is a deficient number, since it is larger than the sum of its proper divisors (4540416855).

331450425013 is an equidigital number, since it uses as much as digits as its factorization.

331450425013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540416854.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 331450425013 its reverse (310524054133), we get a palindrome (641974479146).

The spelling of 331450425013 in words is "three hundred thirty-one billion, four hundred fifty million, four hundred twenty-five thousand, thirteen".