1000011000990 has 64 divisors (see below), whose sum is σ = 2419403857920. Its totient is φ = 264517384320.

The previous prime is 1000011000931. The next prime is 1000011000991. The reversal of 1000011000990 is 990001100001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000011000991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21537600 + ... + 21583980.

It is an arithmetic number, because the mean of its divisors is an integer number (37803185280).

Almost surely, 2^{1000011000990} is an apocalyptic number.

1000011000990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000011000990 is an abundant number, since it is smaller than the sum of its proper divisors (1419392856930).

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

1000011000990 is a wasteful number, since it uses less digits than its factorization.

1000011000990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52177.

The product of its (nonzero) digits is 81, while the sum is 21.

Adding to 1000011000990 its reverse (990001100001), we get a palindrome (1990012100991).

The spelling of 1000011000990 in words is "one trillion, eleven million, nine hundred ninety", and thus it is an aban number.