321131033103043 has 2 divisors, whose sum is σ = 321131033103044. Its totient is φ = 321131033103042.

The previous prime is 321131033103031. The next prime is 321131033103071. The reversal of 321131033103043 is 340301330131123.

It is an a-pointer prime, because the next prime (321131033103071) can be obtained adding 321131033103043 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321131033103043 - 2⁵ = 321131033103011 is a prime.

It is not a weakly prime, because it can be changed into another prime (321131033103443) 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, 160565516551521 + 160565516551522.

It is an arithmetic number, because the mean of its divisors is an integer number (160565516551522).

Almost surely, 2^{321131033103043} is an apocalyptic number.

321131033103043 is a deficient number, since it is larger than the sum of its proper divisors (1).

321131033103043 is an equidigital number, since it uses as much as digits as its factorization.

321131033103043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 321131033103043 its reverse (340301330131123), we get a palindrome (661432363234166).

The spelling of 321131033103043 in words is "three hundred twenty-one trillion, one hundred thirty-one billion, thirty-three million, one hundred three thousand, forty-three".