4123100123 has 4 divisors (see below), whose sum is σ = 4123238280. Its totient is φ = 4122961968.

The previous prime is 4123100119. The next prime is 4123100131. The reversal of 4123100123 is 3210013214.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4123100123 - 2² = 4123100119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4123300123) 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, 3665 + ... + 90882.

It is an arithmetic number, because the mean of its divisors is an integer number (1030809570).

Almost surely, 2^4123100123 is an apocalyptic number.

4123100123 is a deficient number, since it is larger than the sum of its proper divisors (138157).

4123100123 is an equidigital number, since it uses as much as digits as its factorization.

4123100123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138156.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 4123100123 is about 64211.3706675072. The cubic root of 4123100123 is about 1603.5209081692.

Adding to 4123100123 its reverse (3210013214), we get a palindrome (7333113337).

The spelling of 4123100123 in words is "four billion, one hundred twenty-three million, one hundred thousand, one hundred twenty-three".