30403332121 has 2 divisors, whose sum is σ = 30403332122. Its totient is φ = 30403332120.

The previous prime is 30403332109. The next prime is 30403332131. The reversal of 30403332121 is 12123330403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28844266896 + 1559065225 = 169836^2 + 39485^2 .

It is an emirp because it is prime and its reverse (12123330403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30403332121 - 2⁷ = 30403331993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30403332092 and 30403332101.

It is not a weakly prime, because it can be changed into another prime (30403332131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15201666060 + 15201666061.

It is an arithmetic number, because the mean of its divisors is an integer number (15201666061).

Almost surely, 2^30403332121 is an apocalyptic number.

It is an amenable number.

30403332121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30403332121 is an equidigital number, since it uses as much as digits as its factorization.

30403332121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30403332121 its reverse (12123330403), we get a palindrome (42526662524).

The spelling of 30403332121 in words is "thirty billion, four hundred three million, three hundred thirty-two thousand, one hundred twenty-one".