30551321242133 has 2 divisors, whose sum is σ = 30551321242134. Its totient is φ = 30551321242132.

The previous prime is 30551321242103. The next prime is 30551321242177. The reversal of 30551321242133 is 33124212315503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28712525577649 + 1838795664484 = 5358407^2 + 1356022^2 .

It is an emirp because it is prime and its reverse (33124212315503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30551321242133 - 2¹⁸ = 30551320979989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30551321242093 and 30551321242102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30551321242103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15275660621066 + 15275660621067.

It is an arithmetic number, because the mean of its divisors is an integer number (15275660621067).

Almost surely, 2^{30551321242133} is an apocalyptic number.

It is an amenable number.

30551321242133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30551321242133 is an equidigital number, since it uses as much as digits as its factorization.

30551321242133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 30551321242133 its reverse (33124212315503), we get a palindrome (63675533557636).

The spelling of 30551321242133 in words is "thirty trillion, five hundred fifty-one billion, three hundred twenty-one million, two hundred forty-two thousand, one hundred thirty-three".