30312001133 has 2 divisors, whose sum is σ = 30312001134. Its totient is φ = 30312001132.

The previous prime is 30312001121. The next prime is 30312001183. The reversal of 30312001133 is 33110021303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21715559044 + 8596442089 = 147362^2 + 92717^2 .

It is an emirp because it is prime and its reverse (33110021303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30312001133 - 2⁴ = 30312001117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30312001183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156000566 + 15156000567.

It is an arithmetic number, because the mean of its divisors is an integer number (15156000567).

Almost surely, 2^30312001133 is an apocalyptic number.

It is an amenable number.

30312001133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30312001133 is an equidigital number, since it uses as much as digits as its factorization.

30312001133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30312001133 its reverse (33110021303), we get a palindrome (63422022436).

The spelling of 30312001133 in words is "thirty billion, three hundred twelve million, one thousand, one hundred thirty-three".