123320230321 has 2 divisors, whose sum is σ = 123320230322. Its totient is φ = 123320230320.

The previous prime is 123320230283. The next prime is 123320230387. The reversal of 123320230321 is 123032023321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94780858225 + 28539372096 = 307865^2 + 168936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123320230321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123320230292 and 123320230301.

It is not a weakly prime, because it can be changed into another prime (123320230391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61660115160 + 61660115161.

It is an arithmetic number, because the mean of its divisors is an integer number (61660115161).

Almost surely, 2^123320230321 is an apocalyptic number.

It is an amenable number.

123320230321 is a deficient number, since it is larger than the sum of its proper divisors (1).

123320230321 is an equidigital number, since it uses as much as digits as its factorization.

123320230321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123320230321 its reverse (123032023321), we get a palindrome (246352253642).

The spelling of 123320230321 in words is "one hundred twenty-three billion, three hundred twenty million, two hundred thirty thousand, three hundred twenty-one".