1011000199999 has 4 divisors (see below), whose sum is σ = 1012529701720. Its totient is φ = 1009470698280.

The previous prime is 1011000199981. The next prime is 1011000200009. The reversal of 1011000199999 is 9999910001101.

It is a happy number.

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 1011000199999 - 2⁵ = 1011000199967 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 (1011000199919) 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, 764749869 + ... + 764751190.

It is an arithmetic number, because the mean of its divisors is an integer number (253132425430).

Almost surely, 2^{1011000199999} is an apocalyptic number.

1011000199999 is a deficient number, since it is larger than the sum of its proper divisors (1529501721).

1011000199999 is an equidigital number, since it uses as much as digits as its factorization.

1011000199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529501720.

The product of its (nonzero) digits is 59049, while the sum is 49.

The spelling of 1011000199999 in words is "one trillion, eleven billion, one hundred ninety-nine thousand, nine hundred ninety-nine".