124145123 has 2 divisors, whose sum is σ = 124145124. Its totient is φ = 124145122.

The previous prime is 124145117. The next prime is 124145129. The reversal of 124145123 is 321541421.

It is a balanced prime because it is at equal distance from previous prime (124145117) and next prime (124145129).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124145123 is a prime.

It is not a weakly prime, because it can be changed into another prime (124145129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62072561 + 62072562.

It is an arithmetic number, because the mean of its divisors is an integer number (62072562).

Almost surely, 2^124145123 is an apocalyptic number.

124145123 is a deficient number, since it is larger than the sum of its proper divisors (1).

124145123 is an equidigital number, since it uses as much as digits as its factorization.

124145123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 124145123 is about 11142.0430352786. The cubic root of 124145123 is about 498.8575556298.

Adding to 124145123 its reverse (321541421), we get a palindrome (445686544).

It can be divided in two parts, 1241 and 45123, that added together give a palindrome (46364).

The spelling of 124145123 in words is "one hundred twenty-four million, one hundred forty-five thousand, one hundred twenty-three".