11011001001080 has 128 divisors (see below), whose sum is σ = 28255605166080. Its totient is φ = 3837180610560.

The previous prime is 11011001001079. The next prime is 11011001001137. The reversal of 11011001001080 is 8010010011011.

It is a happy number.

It is a super-2 number, since 2×11011001001080² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10870454 + ... + 11840133.

It is an arithmetic number, because the mean of its divisors is an integer number (220746915360).

Almost surely, 2^{11011001001080} is an apocalyptic number.

11011001001080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011001001080 is an abundant number, since it is smaller than the sum of its proper divisors (17244604165000).

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

11011001001080 is a wasteful number, since it uses less digits than its factorization.

11011001001080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22710669 (or 22710665 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11011001001080 its reverse (8010010011011), we get a palindrome (19021011012091).

The spelling of 11011001001080 in words is "eleven trillion, eleven billion, one million, one thousand, eighty".