1011041800999 has 4 divisors (see below), whose sum is σ = 1023839798560. Its totient is φ = 998243803440.

The previous prime is 1011041800943. The next prime is 1011041801017. The reversal of 1011041800999 is 9990081401101.

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 1011041800999 - 2¹¹ = 1011041798951 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 (1011041800399) 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, 6398998662 + ... + 6398998819.

It is an arithmetic number, because the mean of its divisors is an integer number (255959949640).

Almost surely, 2^{1011041800999} is an apocalyptic number.

1011041800999 is a deficient number, since it is larger than the sum of its proper divisors (12797997561).

1011041800999 is an equidigital number, since it uses as much as digits as its factorization.

1011041800999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12797997560.

The product of its (nonzero) digits is 23328, while the sum is 43.

The spelling of 1011041800999 in words is "one trillion, eleven billion, forty-one million, eight hundred thousand, nine hundred ninety-nine".