124042361 has 2 divisors, whose sum is σ = 124042362. Its totient is φ = 124042360.

The previous prime is 124042333. The next prime is 124042363. The reversal of 124042361 is 163240421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101384761 + 22657600 = 10069^2 + 4760^2 .

It is an emirp because it is prime and its reverse (163240421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124042361 is a prime.

Together with 124042363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124042363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62021180 + 62021181.

It is an arithmetic number, because the mean of its divisors is an integer number (62021181).

Almost surely, 2^124042361 is an apocalyptic number.

It is an amenable number.

124042361 is a deficient number, since it is larger than the sum of its proper divisors (1).

124042361 is an equidigital number, since it uses as much as digits as its factorization.

124042361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 124042361 is about 11137.4306282912. The cubic root of 124042361 is about 498.7198733485.

Adding to 124042361 its reverse (163240421), we get a palindrome (287282782).

The spelling of 124042361 in words is "one hundred twenty-four million, forty-two thousand, three hundred sixty-one".