321103245103 has 2 divisors, whose sum is σ = 321103245104. Its totient is φ = 321103245102.

The previous prime is 321103245091. The next prime is 321103245131. The reversal of 321103245103 is 301542301123.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321103245103 - 2⁹ = 321103244591 is a prime.

It is a super-3 number, since 3×321103245103³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321103245163) 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 as a sum of consecutive naturals, namely, 160551622551 + 160551622552.

It is an arithmetic number, because the mean of its divisors is an integer number (160551622552).

Almost surely, 2^321103245103 is an apocalyptic number.

321103245103 is a deficient number, since it is larger than the sum of its proper divisors (1).

321103245103 is an equidigital number, since it uses as much as digits as its factorization.

321103245103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 321103245103 its reverse (301542301123), we get a palindrome (622645546226).

The spelling of 321103245103 in words is "three hundred twenty-one billion, one hundred three million, two hundred forty-five thousand, one hundred three".