30123318191 has 2 divisors, whose sum is σ = 30123318192. Its totient is φ = 30123318190.

The previous prime is 30123318167. The next prime is 30123318209. The reversal of 30123318191 is 19181332103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30123318191 - 2²² = 30119123887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30123318101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061659095 + 15061659096.

It is an arithmetic number, because the mean of its divisors is an integer number (15061659096).

Almost surely, 2^30123318191 is an apocalyptic number.

30123318191 is a deficient number, since it is larger than the sum of its proper divisors (1).

30123318191 is an equidigital number, since it uses as much as digits as its factorization.

30123318191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 30123318191 in words is "thirty billion, one hundred twenty-three million, three hundred eighteen thousand, one hundred ninety-one".