30012121020133 has 6 divisors (see below), whose sum is σ = 34912059145926. Its totient is φ = 25724675160072.

The previous prime is 30012121020109. The next prime is 30012121020139. The reversal of 30012121020133 is 33102012121003.

It can be written as a sum of positive squares in only one way, i.e., 24865311899169 + 5146809120964 = 4986513^2 + 2268658^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30012121020133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30012121020133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012121020139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306246132810 + ... + 306246132907.

It is an arithmetic number, because the mean of its divisors is an integer number (5818676524321).

Almost surely, 2^{30012121020133} is an apocalyptic number.

It is an amenable number.

30012121020133 is a deficient number, since it is larger than the sum of its proper divisors (4899938125793).

30012121020133 is an equidigital number, since it uses as much as digits as its factorization.

30012121020133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612492265731 (or 612492265724 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30012121020133 its reverse (33102012121003), we get a palindrome (63114133141136).

The spelling of 30012121020133 in words is "thirty trillion, twelve billion, one hundred twenty-one million, twenty thousand, one hundred thirty-three".