20030331333121 has 2 divisors, whose sum is σ = 20030331333122. Its totient is φ = 20030331333120.

The previous prime is 20030331333107. The next prime is 20030331333139. The reversal of 20030331333121 is 12133313303002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16646718241521 + 3383613091600 = 4080039^2 + 1839460^2 .

It is a cyclic number.

It is not a de Polignac number, because 20030331333121 - 2⁷ = 20030331332993 is a prime.

It is not a weakly prime, because it can be changed into another prime (20030331331121) 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 as a sum of consecutive naturals, namely, 10015165666560 + 10015165666561.

It is an arithmetic number, because the mean of its divisors is an integer number (10015165666561).

Almost surely, 2^{20030331333121} is an apocalyptic number.

It is an amenable number.

20030331333121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030331333121 is an equidigital number, since it uses as much as digits as its factorization.

20030331333121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 20030331333121 its reverse (12133313303002), we get a palindrome (32163644636123).

The spelling of 20030331333121 in words is "twenty trillion, thirty billion, three hundred thirty-one million, three hundred thirty-three thousand, one hundred twenty-one".