4340420123 has 4 divisors (see below), whose sum is σ = 4674298608. Its totient is φ = 4006541640.

The previous prime is 4340420101. The next prime is 4340420131. The reversal of 4340420123 is 3210240434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4340420123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4340420323) 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, 166939223 + ... + 166939248.

It is an arithmetic number, because the mean of its divisors is an integer number (1168574652).

Almost surely, 2^4340420123 is an apocalyptic number.

4340420123 is a deficient number, since it is larger than the sum of its proper divisors (333878485).

4340420123 is a wasteful number, since it uses less digits than its factorization.

4340420123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333878484.

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

The square root of 4340420123 is about 65881.8649022627. The cubic root of 4340420123 is about 1631.2126826986.

Adding to 4340420123 its reverse (3210240434), we get a palindrome (7550660557).

The spelling of 4340420123 in words is "four billion, three hundred forty million, four hundred twenty thousand, one hundred twenty-three".