11081041940 has 36 divisors (see below), whose sum is σ = 23916169116. Its totient is φ = 4312611072.

The previous prime is 11081041931. The next prime is 11081041943. The reversal of 11081041940 is 4914018011.

It can be written as a sum of positive squares in 6 ways, for example, as 10214416 + 11070827524 = 3196^2 + 105218^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11081041943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174977 + ... + 229736.

It is an arithmetic number, because the mean of its divisors is an integer number (664338031).

Almost surely, 2^11081041940 is an apocalyptic number.

11081041940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11081041940 is an abundant number, since it is smaller than the sum of its proper divisors (12835127176).

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

11081041940 is a wasteful number, since it uses less digits than its factorization.

11081041940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404796 (or 404757 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

Adding to 11081041940 its reverse (4914018011), we get a palindrome (15995059951).

The spelling of 11081041940 in words is "eleven billion, eighty-one million, forty-one thousand, nine hundred forty".