123030001 has 4 divisors (see below), whose sum is σ = 123068992. Its totient is φ = 122991012.

The previous prime is 123029999. The next prime is 123030029. The reversal of 123030001 is 100030321.

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.

It is a cyclic number.

It is not a de Polignac number, because 123030001 - 2¹ = 123029999 is a prime.

It is a super-2 number, since 2×123030001² = 30272762292120002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123030001.

It is not an unprimeable number, because it can be changed into a prime (123037001) 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, 14301 + ... + 21226.

It is an arithmetic number, because the mean of its divisors is an integer number (30767248).

Almost surely, 2^123030001 is an apocalyptic number.

It is an amenable number.

123030001 is a deficient number, since it is larger than the sum of its proper divisors (38991).

123030001 is an equidigital number, since it uses as much as digits as its factorization.

123030001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38990.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 123030001 is about 11091.8889734797. Note that the first 3 decimals coincide. The cubic root of 123030001 is about 497.3594138253.

Adding to 123030001 its reverse (100030321), we get a palindrome (223060322).

The spelling of 123030001 in words is "one hundred twenty-three million, thirty thousand, one".