123331642361 has 2 divisors, whose sum is σ = 123331642362. Its totient is φ = 123331642360.

The previous prime is 123331642339. The next prime is 123331642373. The reversal of 123331642361 is 163246133321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119270766736 + 4060875625 = 345356^2 + 63725^2 .

It is an emirp because it is prime and its reverse (163246133321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123331642361 - 2¹⁸ = 123331380217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123331642331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61665821180 + 61665821181.

It is an arithmetic number, because the mean of its divisors is an integer number (61665821181).

Almost surely, 2^123331642361 is an apocalyptic number.

It is an amenable number.

123331642361 is a deficient number, since it is larger than the sum of its proper divisors (1).

123331642361 is an equidigital number, since it uses as much as digits as its factorization.

123331642361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

Adding to 123331642361 its reverse (163246133321), we get a palindrome (286577775682).

The spelling of 123331642361 in words is "one hundred twenty-three billion, three hundred thirty-one million, six hundred forty-two thousand, three hundred sixty-one".