3123321444413 has 2 divisors, whose sum is σ = 3123321444414. Its totient is φ = 3123321444412.

The previous prime is 3123321444403. The next prime is 3123321444457. The reversal of 3123321444413 is 3144441233213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2504075210329 + 619246234084 = 1582427^2 + 786922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3123321444413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123321444403) 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, 1561660722206 + 1561660722207.

It is an arithmetic number, because the mean of its divisors is an integer number (1561660722207).

Almost surely, 2^{3123321444413} is an apocalyptic number.

It is an amenable number.

3123321444413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123321444413 is an equidigital number, since it uses as much as digits as its factorization.

3123321444413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 35.

Adding to 3123321444413 its reverse (3144441233213), we get a palindrome (6267762677626).

The spelling of 3123321444413 in words is "three trillion, one hundred twenty-three billion, three hundred twenty-one million, four hundred forty-four thousand, four hundred thirteen".