124221404423 has 2 divisors, whose sum is σ = 124221404424. Its totient is φ = 124221404422.

The previous prime is 124221404389. The next prime is 124221404431. The reversal of 124221404423 is 324404122421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124221404423 - 2¹⁶ = 124221338887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124221404443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62110702211 + 62110702212.

It is an arithmetic number, because the mean of its divisors is an integer number (62110702212).

Almost surely, 2^124221404423 is an apocalyptic number.

124221404423 is a deficient number, since it is larger than the sum of its proper divisors (1).

124221404423 is an equidigital number, since it uses as much as digits as its factorization.

124221404423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 124221404423 its reverse (324404122421), we get a palindrome (448625526844).

The spelling of 124221404423 in words is "one hundred twenty-four billion, two hundred twenty-one million, four hundred four thousand, four hundred twenty-three".