123112301 has 4 divisors (see below), whose sum is σ = 132582492. Its totient is φ = 113642112.

The previous prime is 123112273. The next prime is 123112313. The reversal of 123112301 is 103211321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 103211321 = 1151 ⋅89671.

It can be written as a sum of positive squares in 2 ways, for example, as 47596201 + 75516100 = 6899^2 + 8690^2 .

It is a cyclic number.

It is not a de Polignac number, because 123112301 - 2¹⁰ = 123111277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123112321) 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, 4735076 + ... + 4735101.

It is an arithmetic number, because the mean of its divisors is an integer number (33145623).

Almost surely, 2^123112301 is an apocalyptic number.

It is an amenable number.

123112301 is a deficient number, since it is larger than the sum of its proper divisors (9470191).

123112301 is an equidigital number, since it uses as much as digits as its factorization.

123112301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9470190.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 123112301 is about 11095.5982713867. The cubic root of 123112301 is about 497.4702907269.

Adding to 123112301 its reverse (103211321), we get a palindrome (226323622).

The spelling of 123112301 in words is "one hundred twenty-three million, one hundred twelve thousand, three hundred one".