1001119999890 has 32 divisors (see below), whose sum is σ = 2529145264320. Its totient is φ = 252914526144.

The previous prime is 1001119999889. The next prime is 1001119999921. The reversal of 1001119999890 is 989999111001.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 1001119999890.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878174869 + ... + 878176008.

It is an arithmetic number, because the mean of its divisors is an integer number (79035789510).

Almost surely, 2^{1001119999890} is an apocalyptic number.

1001119999890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001119999890 is an abundant number, since it is smaller than the sum of its proper divisors (1528025264430).

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

1001119999890 is a wasteful number, since it uses less digits than its factorization.

1001119999890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756350906.

The product of its (nonzero) digits is 472392, while the sum is 57.

The spelling of 1001119999890 in words is "one trillion, one billion, one hundred nineteen million, nine hundred ninety-nine thousand, eight hundred ninety".