321106104503 has 2 divisors, whose sum is σ = 321106104504. Its totient is φ = 321106104502.

The previous prime is 321106104493. The next prime is 321106104509. The reversal of 321106104503 is 305401601123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321106104503 - 2¹⁴ = 321106088119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321106104509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160553052251 + 160553052252.

It is an arithmetic number, because the mean of its divisors is an integer number (160553052252).

Almost surely, 2^321106104503 is an apocalyptic number.

321106104503 is a deficient number, since it is larger than the sum of its proper divisors (1).

321106104503 is an equidigital number, since it uses as much as digits as its factorization.

321106104503 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 26.

Adding to 321106104503 its reverse (305401601123), we get a palindrome (626507705626).

The spelling of 321106104503 in words is "three hundred twenty-one billion, one hundred six million, one hundred four thousand, five hundred three".