123004001 has 4 divisors (see below), whose sum is σ = 126971904. Its totient is φ = 119036100.

The previous prime is 123003983. The next prime is 123004009. The reversal of 123004001 is 100400321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100400321 = 7 ⋅14342903.

It is a cyclic number.

It is not a de Polignac number, because 123004001 - 2¹⁰ = 123002977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123004009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1983905 + ... + 1983966.

It is an arithmetic number, because the mean of its divisors is an integer number (31742976).

Almost surely, 2^123004001 is an apocalyptic number.

It is an amenable number.

123004001 is a deficient number, since it is larger than the sum of its proper divisors (3967903).

123004001 is an equidigital number, since it uses as much as digits as its factorization.

123004001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967902.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 123004001 is about 11090.7168839530. The cubic root of 123004001 is about 497.3243756078.

Adding to 123004001 its reverse (100400321), we get a palindrome (223404322).

The spelling of 123004001 in words is "one hundred twenty-three million, four thousand, one".