1109998890000 has 3000 divisors, whose sum is σ = 5539766557248. Its totient is φ = 207152640000.

The previous prime is 1109998889981. The next prime is 1109998890029. The reversal of 1109998890000 is 988999011.

It is a tau number, because it is divible by the number of its divisors (3000).

It is a super-3 number, since 3×1109998890000³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 599 ways as a sum of consecutive naturals, for example, 29999969982 + ... + 29999970018.

Almost surely, 2^{1109998890000} is an apocalyptic number.

1109998890000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1109998890000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2769883278624).

1109998890000 is an abundant number, since it is smaller than the sum of its proper divisors (4429767667248).

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

1109998890000 is a wasteful number, since it uses less digits than its factorization.

1109998890000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 54.

The spelling of 1109998890000 in words is "one trillion, one hundred nine billion, nine hundred ninety-eight million, eight hundred ninety thousand".