1000111109998 has 256 divisors, whose sum is σ = 2267314882560. Its totient is φ = 317509632000.

The previous prime is 1000111109957. The next prime is 1000111109999. The reversal of 1000111109998 is 8999011110001.

It is a self number, because there is not a number n which added to its sum of digits gives 1000111109998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000111109999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 65303590 + ... + 65318902.

It is an arithmetic number, because the mean of its divisors is an integer number (8856698760).

Almost surely, 2^{1000111109998} is an apocalyptic number.

1000111109998 is an abundant number, since it is smaller than the sum of its proper divisors (1267203772562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000111109998 is a wasteful number, since it uses less digits than its factorization.

1000111109998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15483.

The product of its (nonzero) digits is 5832, while the sum is 40.

Adding to 1000111109998 its reverse (8999011110001), we get a palindrome (9999122219999).

The spelling of 1000111109998 in words is "one trillion, one hundred eleven million, one hundred nine thousand, nine hundred ninety-eight".