124401205289 has 4 divisors (see below), whose sum is σ = 124403643024. Its totient is φ = 124398767556.

The previous prime is 124401205261. The next prime is 124401205367. The reversal of 124401205289 is 982502104421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 982502104421 = 79 ⋅12436735499.

It is a cyclic number.

It is not a de Polignac number, because 124401205289 - 2²⁴ = 124384428073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124401205259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140647 + ... + 1244940.

It is an arithmetic number, because the mean of its divisors is an integer number (31100910756).

Almost surely, 2^124401205289 is an apocalyptic number.

It is an amenable number.

124401205289 is a deficient number, since it is larger than the sum of its proper divisors (2437735).

124401205289 is an equidigital number, since it uses as much as digits as its factorization.

124401205289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437734.

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 124401205289 in words is "one hundred twenty-four billion, four hundred one million, two hundred five thousand, two hundred eighty-nine".