1099871970000 has 200 divisors, whose sum is σ = 3595484576640. Its totient is φ = 289585920000.

The previous prime is 1099871969953. The next prime is 1099871970049. The reversal of 1099871970000 is 791789901.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2137960 + ... + 2602040.

Almost surely, 2^{1099871970000} is an apocalyptic number.

1099871970000 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 1099871970000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1797742288320).

1099871970000 is an abundant number, since it is smaller than the sum of its proper divisors (2495612606640).

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

1099871970000 is an equidigital number, since it uses as much as digits as its factorization.

1099871970000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464191 (or 464170 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 51.

The spelling of 1099871970000 in words is "one trillion, ninety-nine billion, eight hundred seventy-one million, nine hundred seventy thousand".