4123104121 has 4 divisors (see below), whose sum is σ = 4127806372. Its totient is φ = 4118401872.

The previous prime is 4123104103. The next prime is 4123104127. The reversal of 4123104121 is 1214013214.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2637849600 + 1485254521 = 51360^2 + 38539^2 .

It is a cyclic number.

It is not a de Polignac number, because 4123104121 - 2²⁷ = 3988886393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4123104127) 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, 2349810 + ... + 2351563.

It is an arithmetic number, because the mean of its divisors is an integer number (1031951593).

Almost surely, 2^4123104121 is an apocalyptic number.

It is an amenable number.

4123104121 is a deficient number, since it is larger than the sum of its proper divisors (4702251).

4123104121 is an equidigital number, since it uses as much as digits as its factorization.

4123104121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702250.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 4123104121 is about 64211.4017990575. The cubic root of 4123104121 is about 1603.5214264583.

Adding to 4123104121 its reverse (1214013214), we get a palindrome (5337117335).

The spelling of 4123104121 in words is "four billion, one hundred twenty-three million, one hundred four thousand, one hundred twenty-one".