321213142023013 has 2 divisors, whose sum is σ = 321213142023014. Its totient is φ = 321213142023012.

The previous prime is 321213142022987. The next prime is 321213142023083. The reversal of 321213142023013 is 310320241312123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285935992568164 + 35277149454849 = 16909642^2 + 5939457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321213142023013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321213142023083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160606571011506 + 160606571011507.

It is an arithmetic number, because the mean of its divisors is an integer number (160606571011507).

Almost surely, 2^{321213142023013} is an apocalyptic number.

It is an amenable number.

321213142023013 is a deficient number, since it is larger than the sum of its proper divisors (1).

321213142023013 is an equidigital number, since it uses as much as digits as its factorization.

321213142023013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 321213142023013 its reverse (310320241312123), we get a palindrome (631533383335136).

The spelling of 321213142023013 in words is "three hundred twenty-one trillion, two hundred thirteen billion, one hundred forty-two million, twenty-three thousand, thirteen".