30195711999 has 12 divisors (see below), whose sum is σ = 43617538536. Its totient is φ = 20129777712.

The previous prime is 30195711991. The next prime is 30195712031. The reversal of 30195711999 is 99911759103.

It is not a de Polignac number, because 30195711999 - 2³ = 30195711991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30195711991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453144 + ... + 515490.

It is an arithmetic number, because the mean of its divisors is an integer number (3634794878).

Almost surely, 2^30195711999 is an apocalyptic number.

30195711999 is a deficient number, since it is larger than the sum of its proper divisors (13421826537).

30195711999 is a wasteful number, since it uses less digits than its factorization.

30195711999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116166 (or 116163 counting only the distinct ones).

The product of its (nonzero) digits is 688905, while the sum is 54.

The spelling of 30195711999 in words is "thirty billion, one hundred ninety-five million, seven hundred eleven thousand, nine hundred ninety-nine".