123043013123 has 8 divisors (see below), whose sum is σ = 123200492448. Its totient is φ = 122885636544.

The previous prime is 123043013101. The next prime is 123043013209. The reversal of 123043013123 is 321310340321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123043013123 - 2³⁰ = 121969271299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123043013323) 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 7 ways as a sum of consecutive naturals, for example, 2530961 + ... + 2579117.

It is an arithmetic number, because the mean of its divisors is an integer number (15400061556).

Almost surely, 2^123043013123 is an apocalyptic number.

123043013123 is a deficient number, since it is larger than the sum of its proper divisors (157479325).

123043013123 is a wasteful number, since it uses less digits than its factorization.

123043013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51373.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123043013123 its reverse (321310340321), we get a palindrome (444353353444).

The spelling of 123043013123 in words is "one hundred twenty-three billion, forty-three million, thirteen thousand, one hundred twenty-three".