12112303303021 has 8 divisors (see below), whose sum is σ = 12408027723000. Its totient is φ = 11816593282560.

The previous prime is 12112303302989. The next prime is 12112303303033. The reversal of 12112303303021 is 12030330321121.

It can be written as a sum of positive squares in 4 ways, for example, as 1217425356900 + 10894877946121 = 1103370^2 + 3300739^2 .

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 12112303303021 - 2⁵ = 12112303302989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112303302983 and 12112303303001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112303303721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1887196 + ... + 5271253.

It is an arithmetic number, because the mean of its divisors is an integer number (1551003465375).

Almost surely, 2^{12112303303021} is an apocalyptic number.

It is an amenable number.

12112303303021 is a deficient number, since it is larger than the sum of its proper divisors (295724419979).

12112303303021 is an equidigital number, since it uses as much as digits as its factorization.

12112303303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199759.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12112303303021 its reverse (12030330321121), we get a palindrome (24142633624142).

The spelling of 12112303303021 in words is "twelve trillion, one hundred twelve billion, three hundred three million, three hundred three thousand, twenty-one".