30121331347 has 2 divisors, whose sum is σ = 30121331348. Its totient is φ = 30121331346.

The previous prime is 30121331327. The next prime is 30121331363. The reversal of 30121331347 is 74313312103.

It is a strong prime.

It is an emirp because it is prime and its reverse (74313312103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30121331347 is a prime.

It is not a weakly prime, because it can be changed into another prime (30121331327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060665673 + 15060665674.

It is an arithmetic number, because the mean of its divisors is an integer number (15060665674).

Almost surely, 2^30121331347 is an apocalyptic number.

30121331347 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121331347 is an equidigital number, since it uses as much as digits as its factorization.

30121331347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The spelling of 30121331347 in words is "thirty billion, one hundred twenty-one million, three hundred thirty-one thousand, three hundred forty-seven".