11051113500 has 480 divisors, whose sum is σ = 43647956352. Its totient is φ = 2376345600.

The previous prime is 11051113487. The next prime is 11051113501. The reversal of 11051113500 is 531115011.

11051113500 is a `hidden beast` number, since 1 + 1 + 0 + 51 + 113 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11051113501) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 4818354 + ... + 4820646.

Almost surely, 2^11051113500 is an apocalyptic number.

11051113500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11051113500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21823978176).

11051113500 is an abundant number, since it is smaller than the sum of its proper divisors (32596842852).

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

11051113500 is a wasteful number, since it uses less digits than its factorization.

11051113500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 18.

Adding to 11051113500 its reverse (531115011), we get a palindrome (11582228511).

The spelling of 11051113500 in words is "eleven billion, fifty-one million, one hundred thirteen thousand, five hundred".