12130123021 has 8 divisors (see below), whose sum is σ = 12561689088. Its totient is φ = 11701074000.

The previous prime is 12130123009. The next prime is 12130123043. The reversal of 12130123021 is 12032103121.

12130123021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12130123021 - 2⁹ = 12130122509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12130122986 and 12130123004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130123721) 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, 619450 + ... + 638731.

It is an arithmetic number, because the mean of its divisors is an integer number (1570211136).

Almost surely, 2^12130123021 is an apocalyptic number.

It is an amenable number.

12130123021 is a deficient number, since it is larger than the sum of its proper divisors (431566067).

12130123021 is a wasteful number, since it uses less digits than its factorization.

12130123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258523.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12130123021 its reverse (12032103121), we get a palindrome (24162226142).

The spelling of 12130123021 in words is "twelve billion, one hundred thirty million, one hundred twenty-three thousand, twenty-one".