126232321 has 2 divisors, whose sum is σ = 126232322. Its totient is φ = 126232320.

The previous prime is 126232319. The next prime is 126232339. The reversal of 126232321 is 123232621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119049921 + 7182400 = 10911^2 + 2680^2 .

It is an emirp because it is prime and its reverse (123232621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126232321 - 2¹ = 126232319 is a prime.

Together with 126232319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 126232292 and 126232301.

It is not a weakly prime, because it can be changed into another prime (126232121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63116160 + 63116161.

It is an arithmetic number, because the mean of its divisors is an integer number (63116161).

Almost surely, 2^126232321 is an apocalyptic number.

It is an amenable number.

126232321 is a deficient number, since it is larger than the sum of its proper divisors (1).

126232321 is an equidigital number, since it uses as much as digits as its factorization.

126232321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 126232321 is about 11235.3157944047. The cubic root of 126232321 is about 501.6377245266.

Adding to 126232321 its reverse (123232621), we get a palindrome (249464942).

The spelling of 126232321 in words is "one hundred twenty-six million, two hundred thirty-two thousand, three hundred twenty-one".