124002343121 has 4 divisors (see below), whose sum is σ = 125161243632. Its totient is φ = 122843442612.

The previous prime is 124002343093. The next prime is 124002343139. The reversal of 124002343121 is 121343200421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124002343121 - 2¹⁰ = 124002342097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124002333121) 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, 579450095 + ... + 579450308.

It is an arithmetic number, because the mean of its divisors is an integer number (31290310908).

Almost surely, 2^124002343121 is an apocalyptic number.

It is an amenable number.

124002343121 is a deficient number, since it is larger than the sum of its proper divisors (1158900511).

124002343121 is a wasteful number, since it uses less digits than its factorization.

124002343121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158900510.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 124002343121 its reverse (121343200421), we get a palindrome (245345543542).

The spelling of 124002343121 in words is "one hundred twenty-four billion, two million, three hundred forty-three thousand, one hundred twenty-one".