4231204123 has 2 divisors, whose sum is σ = 4231204124. Its totient is φ = 4231204122.

The previous prime is 4231204121. The next prime is 4231204127. The reversal of 4231204123 is 3214021324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4231204123 - 2¹ = 4231204121 is a prime.

Together with 4231204121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4231204094 and 4231204103.

It is not a weakly prime, because it can be changed into another prime (4231204121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115602061 + 2115602062.

It is an arithmetic number, because the mean of its divisors is an integer number (2115602062).

Almost surely, 2^4231204123 is an apocalyptic number.

4231204123 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231204123 is an equidigital number, since it uses as much as digits as its factorization.

4231204123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4231204123 is about 65047.7065160640. The cubic root of 4231204123 is about 1617.4144758802.

Adding to 4231204123 its reverse (3214021324), we get a palindrome (7445225447).

The spelling of 4231204123 in words is "four billion, two hundred thirty-one million, two hundred four thousand, one hundred twenty-three".