30121132133 has 2 divisors, whose sum is σ = 30121132134. Its totient is φ = 30121132132.

The previous prime is 30121132081. The next prime is 30121132147. The reversal of 30121132133 is 33123112103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30115090369 + 6041764 = 173537^2 + 2458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30121132133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30121132633) 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, 15060566066 + 15060566067.

It is an arithmetic number, because the mean of its divisors is an integer number (15060566067).

Almost surely, 2^30121132133 is an apocalyptic number.

It is an amenable number.

30121132133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121132133 is an equidigital number, since it uses as much as digits as its factorization.

30121132133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30121132133 its reverse (33123112103), we get a palindrome (63244244236).

The spelling of 30121132133 in words is "thirty billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred thirty-three".