331013219 has 2 divisors, whose sum is σ = 331013220. Its totient is φ = 331013218.

The previous prime is 331013209. The next prime is 331013227. The reversal of 331013219 is 912310133.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 331013219 - 2⁴ = 331013203 is a prime.

It is a super-2 number, since 2×331013219² = 219139502305483922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 331013194 and 331013203.

It is not a weakly prime, because it can be changed into another prime (331013209) 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 as a sum of consecutive naturals, namely, 165506609 + 165506610.

It is an arithmetic number, because the mean of its divisors is an integer number (165506610).

Almost surely, 2^331013219 is an apocalyptic number.

331013219 is a deficient number, since it is larger than the sum of its proper divisors (1).

331013219 is an equidigital number, since it uses as much as digits as its factorization.

331013219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 331013219 is about 18193.7686860090. The cubic root of 331013219 is about 691.7488501046.

The spelling of 331013219 in words is "three hundred thirty-one million, thirteen thousand, two hundred nineteen".