123543322237 has 2 divisors, whose sum is σ = 123543322238. Its totient is φ = 123543322236.

The previous prime is 123543322207. The next prime is 123543322241. The reversal of 123543322237 is 732223345321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122481800676 + 1061521561 = 349974^2 + 32581^2 .

It is a cyclic number.

It is not a de Polignac number, because 123543322237 - 2¹¹ = 123543320189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123543322196 and 123543322205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123543322207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61771661118 + 61771661119.

It is an arithmetic number, because the mean of its divisors is an integer number (61771661119).

Almost surely, 2^123543322237 is an apocalyptic number.

It is an amenable number.

123543322237 is a deficient number, since it is larger than the sum of its proper divisors (1).

123543322237 is an equidigital number, since it uses as much as digits as its factorization.

123543322237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 37.

Adding to 123543322237 its reverse (732223345321), we get a palindrome (855766667558).

The spelling of 123543322237 in words is "one hundred twenty-three billion, five hundred forty-three million, three hundred twenty-two thousand, two hundred thirty-seven".