30121131033317 has 2 divisors, whose sum is σ = 30121131033318. Its totient is φ = 30121131033316.

The previous prime is 30121131033307. The next prime is 30121131033349. The reversal of 30121131033317 is 71333013112103.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22186492744516 + 7934638288801 = 4710254^2 + 2816849^2 .

It is an emirp because it is prime and its reverse (71333013112103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30121131033317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30121131033317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30121131033307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060565516658 + 15060565516659.

It is an arithmetic number, because the mean of its divisors is an integer number (15060565516659).

Almost surely, 2^{30121131033317} is an apocalyptic number.

It is an amenable number.

30121131033317 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121131033317 is an equidigital number, since it uses as much as digits as its factorization.

30121131033317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 29.

The spelling of 30121131033317 in words is "thirty trillion, one hundred twenty-one billion, one hundred thirty-one million, thirty-three thousand, three hundred seventeen".