331323103 has 2 divisors, whose sum is σ = 331323104. Its totient is φ = 331323102.

The previous prime is 331323101. The next prime is 331323151. The reversal of 331323103 is 301323133.

It is a weak prime.

It is an emirp because it is prime and its reverse (301323133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331323103 - 2¹ = 331323101 is a prime.

Together with 331323101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331323101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165661551 + 165661552.

It is an arithmetic number, because the mean of its divisors is an integer number (165661552).

Almost surely, 2^331323103 is an apocalyptic number.

331323103 is a deficient number, since it is larger than the sum of its proper divisors (1).

331323103 is an equidigital number, since it uses as much as digits as its factorization.

331323103 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 19.

The square root of 331323103 is about 18202.2829062730. The cubic root of 331323103 is about 691.9646471687.

Adding to 331323103 its reverse (301323133), we get a palindrome (632646236).

The spelling of 331323103 in words is "three hundred thirty-one million, three hundred twenty-three thousand, one hundred three".