30012321197 has 2 divisors, whose sum is σ = 30012321198. Its totient is φ = 30012321196.

The previous prime is 30012321193. The next prime is 30012321217. The reversal of 30012321197 is 79112321003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24060352996 + 5951968201 = 155114^2 + 77149^2 .

It is an emirp because it is prime and its reverse (79112321003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30012321197 - 2² = 30012321193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30012321191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006160598 + 15006160599.

It is an arithmetic number, because the mean of its divisors is an integer number (15006160599).

Almost surely, 2^30012321197 is an apocalyptic number.

It is an amenable number.

30012321197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012321197 is an equidigital number, since it uses as much as digits as its factorization.

30012321197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The spelling of 30012321197 in words is "thirty billion, twelve million, three hundred twenty-one thousand, one hundred ninety-seven".