321310012103 has 2 divisors, whose sum is σ = 321310012104. Its totient is φ = 321310012102.

The previous prime is 321310012061. The next prime is 321310012117. The reversal of 321310012103 is 301210013123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321310012103 - 2¹⁶ = 321309946567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321310012123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160655006051 + 160655006052.

It is an arithmetic number, because the mean of its divisors is an integer number (160655006052).

Almost surely, 2^321310012103 is an apocalyptic number.

321310012103 is a deficient number, since it is larger than the sum of its proper divisors (1).

321310012103 is an equidigital number, since it uses as much as digits as its factorization.

321310012103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 321310012103 its reverse (301210013123), we get a palindrome (622520025226).

The spelling of 321310012103 in words is "three hundred twenty-one billion, three hundred ten million, twelve thousand, one hundred three".