124511012123 has 2 divisors, whose sum is σ = 124511012124. Its totient is φ = 124511012122.

The previous prime is 124511012107. The next prime is 124511012147. The reversal of 124511012123 is 321210115421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124511012123 - 2⁴ = 124511012107 is a prime.

It is not a weakly prime, because it can be changed into another prime (124511012183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62255506061 + 62255506062.

It is an arithmetic number, because the mean of its divisors is an integer number (62255506062).

Almost surely, 2^124511012123 is an apocalyptic number.

124511012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

124511012123 is an equidigital number, since it uses as much as digits as its factorization.

124511012123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 124511012123 its reverse (321210115421), we get a palindrome (445721127544).

The spelling of 124511012123 in words is "one hundred twenty-four billion, five hundred eleven million, twelve thousand, one hundred twenty-three".