124323109 has 2 divisors, whose sum is σ = 124323110. Its totient is φ = 124323108.

The previous prime is 124323079. The next prime is 124323149. The reversal of 124323109 is 901323421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75742209 + 48580900 = 8703^2 + 6970^2 .

It is a cyclic number.

It is not a de Polignac number, because 124323109 - 2¹³ = 124314917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124323149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62161554 + 62161555.

It is an arithmetic number, because the mean of its divisors is an integer number (62161555).

Almost surely, 2^124323109 is an apocalyptic number.

It is an amenable number.

124323109 is a deficient number, since it is larger than the sum of its proper divisors (1).

124323109 is an equidigital number, since it uses as much as digits as its factorization.

124323109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 124323109 is about 11150.0273093836. The cubic root of 124323109 is about 499.0958446584.

The spelling of 124323109 in words is "one hundred twenty-four million, three hundred twenty-three thousand, one hundred nine".