3124220123 has 4 divisors (see below), whose sum is σ = 3125891808. Its totient is φ = 3122548440.

The previous prime is 3124220107. The next prime is 3124220147. The reversal of 3124220123 is 3210224213.

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 3124220123 - 2⁴ = 3124220107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3124220095 and 3124220104.

It is not an unprimeable number, because it can be changed into a prime (3124220153) 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 3 ways as a sum of consecutive naturals, for example, 833036 + ... + 836777.

It is an arithmetic number, because the mean of its divisors is an integer number (781472952).

Almost surely, 2^3124220123 is an apocalyptic number.

3124220123 is a deficient number, since it is larger than the sum of its proper divisors (1671685).

3124220123 is a wasteful number, since it uses less digits than its factorization.

3124220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671684.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3124220123 is about 55894.7235702978. The cubic root of 3124220123 is about 1461.8872390315.

Adding to 3124220123 its reverse (3210224213), we get a palindrome (6334444336).

The spelling of 3124220123 in words is "three billion, one hundred twenty-four million, two hundred twenty thousand, one hundred twenty-three".