11143605450 has 96 divisors (see below), whose sum is σ = 29418206400. Its totient is φ = 2783531520.

The previous prime is 11143605443. The next prime is 11143605457. The reversal of 11143605450 is 5450634111.

It is a happy number.

11143605450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11143605443) and next prime (11143605457).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11143605457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 231684 + ... + 275616.

It is an arithmetic number, because the mean of its divisors is an integer number (306439650).

Almost surely, 2^11143605450 is an apocalyptic number.

11143605450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11143605450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14709103200).

11143605450 is an abundant number, since it is smaller than the sum of its proper divisors (18274600950).

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

11143605450 is a wasteful number, since it uses less digits than its factorization.

11143605450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44056 (or 44051 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 11143605450 in words is "eleven billion, one hundred forty-three million, six hundred five thousand, four hundred fifty".