123000130021 has 8 divisors (see below), whose sum is σ = 125731716480. Its totient is φ = 120273317088.

The previous prime is 123000129961. The next prime is 123000130031. The reversal of 123000130021 is 120031000321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123000130021 - 2⁹ = 123000129509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123000129983 and 123000130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123000130031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141251 + ... + 1244368.

It is an arithmetic number, because the mean of its divisors is an integer number (15716464560).

Almost surely, 2^123000130021 is an apocalyptic number.

It is an amenable number.

123000130021 is a deficient number, since it is larger than the sum of its proper divisors (2731586459).

123000130021 is a wasteful number, since it uses less digits than its factorization.

123000130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386763.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 123000130021 its reverse (120031000321), we get a palindrome (243031130342).

The spelling of 123000130021 in words is "one hundred twenty-three billion, one hundred thirty thousand, twenty-one".