30191198661119 has 4 divisors (see below), whose sum is σ = 31503859472496. Its totient is φ = 28878537849744.

The previous prime is 30191198661103. The next prime is 30191198661139. The reversal of 30191198661119 is 91116689119103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30191198661119 - 2⁴ = 30191198661103 is a prime.

It is a super-2 number, since 2×30191198661119² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30191198661139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656330405654 + ... + 656330405699.

It is an arithmetic number, because the mean of its divisors is an integer number (7875964868124).

Almost surely, 2^{30191198661119} is an apocalyptic number.

30191198661119 is a deficient number, since it is larger than the sum of its proper divisors (1312660811377).

30191198661119 is a wasteful number, since it uses less digits than its factorization.

30191198661119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312660811376.

The product of its (nonzero) digits is 629856, while the sum is 56.

The spelling of 30191198661119 in words is "thirty trillion, one hundred ninety-one billion, one hundred ninety-eight million, six hundred sixty-one thousand, one hundred nineteen".