30105131197 has 2 divisors, whose sum is σ = 30105131198. Its totient is φ = 30105131196.

The previous prime is 30105131137. The next prime is 30105131209. The reversal of 30105131197 is 79113150103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24643034361 + 5462096836 = 156981^2 + 73906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30105131197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30105131137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15052565598 + 15052565599.

It is an arithmetic number, because the mean of its divisors is an integer number (15052565599).

Almost surely, 2^30105131197 is an apocalyptic number.

It is an amenable number.

30105131197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30105131197 is an equidigital number, since it uses as much as digits as its factorization.

30105131197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 31.

The spelling of 30105131197 in words is "thirty billion, one hundred five million, one hundred thirty-one thousand, one hundred ninety-seven".