4218998123 has 16 divisors (see below), whose sum is σ = 4459504896. Its totient is φ = 3983522400.

The previous prime is 4218998093. The next prime is 4218998129. The reversal of 4218998123 is 3218998124.

It is a cyclic number.

It is not a de Polignac number, because 4218998123 - 2¹⁰ = 4218997099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4218998129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718148 + ... + 723998.

It is an arithmetic number, because the mean of its divisors is an integer number (278719056).

Almost surely, 2^4218998123 is an apocalyptic number.

4218998123 is a deficient number, since it is larger than the sum of its proper divisors (240506773).

4218998123 is a wasteful number, since it uses less digits than its factorization.

4218998123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274.

The product of its digits is 248832, while the sum is 47.

The square root of 4218998123 is about 64953.8153074937. The cubic root of 4218998123 is about 1615.8576948169.

Subtracting from 4218998123 its reverse (3218998124), we obtain a palindrome (999999999).

The spelling of 4218998123 in words is "four billion, two hundred eighteen million, nine hundred ninety-eight thousand, one hundred twenty-three".