331022413 has 2 divisors, whose sum is σ = 331022414. Its totient is φ = 331022412.

The previous prime is 331022407. The next prime is 331022507. The reversal of 331022413 is 314220133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329894569 + 1127844 = 18163^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 331022413 - 2⁵ = 331022381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331022513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165511206 + 165511207.

It is an arithmetic number, because the mean of its divisors is an integer number (165511207).

Almost surely, 2^331022413 is an apocalyptic number.

It is an amenable number.

331022413 is a deficient number, since it is larger than the sum of its proper divisors (1).

331022413 is an equidigital number, since it uses as much as digits as its factorization.

331022413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 331022413 is about 18194.0213531808. The cubic root of 331022413 is about 691.7552545619.

Adding to 331022413 its reverse (314220133), we get a palindrome (645242546).

The spelling of 331022413 in words is "three hundred thirty-one million, twenty-two thousand, four hundred thirteen".