12020030121 has 8 divisors (see below), whose sum is σ = 17483680224. Its totient is φ = 7284866720.

The previous prime is 12020030119. The next prime is 12020030227. The reversal of 12020030121 is 12103002021.

12020030121 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 a cyclic number.

It is not a de Polignac number, because 12020030121 - 2¹ = 12020030119 is a prime.

It is a super-2 number, since 2×12020030121² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12020030097 and 12020030106.

It is not an unprimeable number, because it can be changed into a prime (12020030521) 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, 182121636 + ... + 182121701.

It is an arithmetic number, because the mean of its divisors is an integer number (2185460028).

Almost surely, 2^12020030121 is an apocalyptic number.

12020030121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12020030121 is a deficient number, since it is larger than the sum of its proper divisors (5463650103).

12020030121 is a wasteful number, since it uses less digits than its factorization.

12020030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364243351.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12020030121 its reverse (12103002021), we get a palindrome (24123032142).

The spelling of 12020030121 in words is "twelve billion, twenty million, thirty thousand, one hundred twenty-one".