12330331030021 has 4 divisors (see below), whose sum is σ = 12439449003852. Its totient is φ = 12221213056192.

The previous prime is 12330331030019. The next prime is 12330331030027. The reversal of 12330331030021 is 12003013303321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6014810205121 + 6315520824900 = 2452511^2 + 2513070^2 .

It is a cyclic number.

It is not a de Polignac number, because 12330331030021 - 2¹ = 12330331030019 is a prime.

It is a super-4 number, since 4×12330331030021⁴ (a number of 53 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12330331029974 and 12330331030001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12330331030027) 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, 54558986746 + ... + 54558986971.

It is an arithmetic number, because the mean of its divisors is an integer number (3109862250963).

Almost surely, 2^{12330331030021} is an apocalyptic number.

It is an amenable number.

12330331030021 is a deficient number, since it is larger than the sum of its proper divisors (109117973831).

12330331030021 is a wasteful number, since it uses less digits than its factorization.

12330331030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109117973830.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 12330331030021 its reverse (12003013303321), we get a palindrome (24333344333342).

The spelling of 12330331030021 in words is "twelve trillion, three hundred thirty billion, three hundred thirty-one million, thirty thousand, twenty-one".