321012331243 has 2 divisors, whose sum is σ = 321012331244. Its totient is φ = 321012331242.

The previous prime is 321012331229. The next prime is 321012331259. The reversal of 321012331243 is 342133210123.

It is a weak prime.

It is an emirp because it is prime and its reverse (342133210123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321012331243 - 2⁹ = 321012330731 is a prime.

It is not a weakly prime, because it can be changed into another prime (321012331223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160506165621 + 160506165622.

It is an arithmetic number, because the mean of its divisors is an integer number (160506165622).

Almost surely, 2^321012331243 is an apocalyptic number.

321012331243 is a deficient number, since it is larger than the sum of its proper divisors (1).

321012331243 is an equidigital number, since it uses as much as digits as its factorization.

321012331243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 321012331243 its reverse (342133210123), we get a palindrome (663145541366).

The spelling of 321012331243 in words is "three hundred twenty-one billion, twelve million, three hundred thirty-one thousand, two hundred forty-three".