4202423123 has 4 divisors (see below), whose sum is σ = 4214464800. Its totient is φ = 4190381448.

The previous prime is 4202423107. The next prime is 4202423129. The reversal of 4202423123 is 3213242024.

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 4202423123 - 2⁴ = 4202423107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4202423129) 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, 6020315 + ... + 6021012.

It is an arithmetic number, because the mean of its divisors is an integer number (1053616200).

Almost surely, 2^4202423123 is an apocalyptic number.

4202423123 is a deficient number, since it is larger than the sum of its proper divisors (12041677).

4202423123 is a wasteful number, since it uses less digits than its factorization.

4202423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12041676.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4202423123 is about 64826.0990882530. The cubic root of 4202423123 is about 1613.7388670129.

Adding to 4202423123 its reverse (3213242024), we get a palindrome (7415665147).

The spelling of 4202423123 in words is "four billion, two hundred two million, four hundred twenty-three thousand, one hundred twenty-three".