11011001984 has 32 divisors (see below), whose sum is σ = 22471015140. Its totient is φ = 5371217920.

The previous prime is 11011001957. The next prime is 11011002019. The reversal of 11011001984 is 48910011011.

It can be written as a sum of positive squares in 2 ways, for example, as 11008206400 + 2795584 = 104920^2 + 1672^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043819 + ... + 1054314.

Almost surely, 2^11011001984 is an apocalyptic number.

It is an amenable number.

11011001984 is an abundant number, since it is smaller than the sum of its proper divisors (11460013156).

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

11011001984 is an equidigital number, since it uses as much as digits as its factorization.

11011001984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098188 (or 2098176 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 26.

Adding to 11011001984 its reverse (48910011011), we get a palindrome (59921012995).

The spelling of 11011001984 in words is "eleven billion, eleven million, one thousand, nine hundred eighty-four".