12030332121 has 6 divisors (see below), whose sum is σ = 17377146410. Its totient is φ = 8020221408.

The previous prime is 12030332113. The next prime is 12030332143. The reversal of 12030332121 is 12123303021.

12030332121 is a `hidden beast` number, since 1 + 20 + 303 + 321 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7407012096 + 4623320025 = 86064^2 + 67995^2 .

It is not a de Polignac number, because 12030332121 - 2³ = 12030332113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12030332094 and 12030332103.

It is not an unprimeable number, because it can be changed into a prime (12030330121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 668351776 + ... + 668351793.

Almost surely, 2^12030332121 is an apocalyptic number.

It is an amenable number.

12030332121 is a deficient number, since it is larger than the sum of its proper divisors (5346814289).

12030332121 is a wasteful number, since it uses less digits than its factorization.

12030332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336703575 (or 1336703572 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12030332121 its reverse (12123303021), we get a palindrome (24153635142).

The spelling of 12030332121 in words is "twelve billion, thirty million, three hundred thirty-two thousand, one hundred twenty-one".