1992000205111 has 4 divisors (see below), whose sum is σ = 2276571662992. Its totient is φ = 1707428747232.

The previous prime is 1992000205109. The next prime is 1992000205141. The reversal of 1992000205111 is 1115020002991.

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 1992000205111 - 2¹ = 1992000205109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992000205141) 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, 142285728930 + ... + 142285728943.

It is an arithmetic number, because the mean of its divisors is an integer number (569142915748).

Almost surely, 2^{1992000205111} is an apocalyptic number.

1992000205111 is a deficient number, since it is larger than the sum of its proper divisors (284571457881).

1992000205111 is an equidigital number, since it uses as much as digits as its factorization.

1992000205111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284571457880.

The product of its (nonzero) digits is 1620, while the sum is 31.

The spelling of 1992000205111 in words is "one trillion, nine hundred ninety-two billion, two hundred five thousand, one hundred eleven".