124331321 has 2 divisors, whose sum is σ = 124331322. Its totient is φ = 124331320.

The previous prime is 124331299. The next prime is 124331341. The reversal of 124331321 is 123133421.

It is an a-pointer prime, because the next prime (124331341) can be obtained adding 124331321 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99281296 + 25050025 = 9964^2 + 5005^2 .

It is a cyclic number.

It is not a de Polignac number, because 124331321 - 2⁶ = 124331257 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 124331293 and 124331302.

It is not a weakly prime, because it can be changed into another prime (124331341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62165660 + 62165661.

It is an arithmetic number, because the mean of its divisors is an integer number (62165661).

Almost surely, 2^124331321 is an apocalyptic number.

It is an amenable number.

124331321 is a deficient number, since it is larger than the sum of its proper divisors (1).

124331321 is an equidigital number, since it uses as much as digits as its factorization.

124331321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 124331321 is about 11150.3955535219. The cubic root of 124331321 is about 499.1068334571.

Adding to 124331321 its reverse (123133421), we get a palindrome (247464742).

The spelling of 124331321 in words is "one hundred twenty-four million, three hundred thirty-one thousand, three hundred twenty-one".