11011047380 has 12 divisors (see below), whose sum is σ = 23123199540. Its totient is φ = 4404418944.

The previous prime is 11011047331. The next prime is 11011047389. The reversal of 11011047380 is 8374011011.

It can be written as a sum of positive squares in 2 ways, for example, as 8733276304 + 2277771076 = 93452^2 + 47726^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011047389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275276165 + ... + 275276204.

It is an arithmetic number, because the mean of its divisors is an integer number (1926933295).

Almost surely, 2^11011047380 is an apocalyptic number.

11011047380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011047380 is an abundant number, since it is smaller than the sum of its proper divisors (12112152160).

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

11011047380 is a wasteful number, since it uses less digits than its factorization.

11011047380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550552378 (or 550552376 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

Adding to 11011047380 its reverse (8374011011), we get a palindrome (19385058391).

The spelling of 11011047380 in words is "eleven billion, eleven million, forty-seven thousand, three hundred eighty".