30191198661103 has 2 divisors, whose sum is σ = 30191198661104. Its totient is φ = 30191198661102.

The previous prime is 30191198661083. The next prime is 30191198661139. The reversal of 30191198661103 is 30116689119103.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30191198661103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30191192661103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15095599330551 + 15095599330552.

It is an arithmetic number, because the mean of its divisors is an integer number (15095599330552).

Almost surely, 2^{30191198661103} is an apocalyptic number.

30191198661103 is a deficient number, since it is larger than the sum of its proper divisors (1).

30191198661103 is an equidigital number, since it uses as much as digits as its factorization.

30191198661103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 49.

The spelling of 30191198661103 in words is "thirty trillion, one hundred ninety-one billion, one hundred ninety-eight million, six hundred sixty-one thousand, one hundred three".