123124316123 has 4 divisors (see below), whose sum is σ = 127096068288. Its totient is φ = 119152563960.

The previous prime is 123124316111. The next prime is 123124316143. The reversal of 123124316123 is 321613421321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123124316123 - 2¹² = 123124312027 is a prime.

It is a super-2 number, since 2×123124316123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123124316143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985876036 + ... + 1985876097.

It is an arithmetic number, because the mean of its divisors is an integer number (31774017072).

Almost surely, 2^123124316123 is an apocalyptic number.

123124316123 is a deficient number, since it is larger than the sum of its proper divisors (3971752165).

123124316123 is an equidigital number, since it uses as much as digits as its factorization.

123124316123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971752164.

The product of its digits is 5184, while the sum is 29.

Adding to 123124316123 its reverse (321613421321), we get a palindrome (444737737444).

The spelling of 123124316123 in words is "one hundred twenty-three billion, one hundred twenty-four million, three hundred sixteen thousand, one hundred twenty-three".