11011420134 has 96 divisors (see below), whose sum is σ = 28681196544. Its totient is φ = 3008456640.

The previous prime is 11011420099. The next prime is 11011420139. The reversal of 11011420134 is 43102411011.

11011420134 is a `hidden beast` number, since 110 + 1 + 1 + 420 + 134 = 666.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011420139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60939 + ... + 160425.

It is an arithmetic number, because the mean of its divisors is an integer number (298762464).

Almost surely, 2^11011420134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11011420134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14340598272).

11011420134 is an abundant number, since it is smaller than the sum of its proper divisors (17669776410).

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

11011420134 is a wasteful number, since it uses less digits than its factorization.

11011420134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99562 (or 99559 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11011420134 its reverse (43102411011), we get a palindrome (54113831145).

The spelling of 11011420134 in words is "eleven billion, eleven million, four hundred twenty thousand, one hundred thirty-four".