11243453505 has 16 divisors (see below), whose sum is σ = 18372282624. Its totient is φ = 5868922880.

The previous prime is 11243453491. The next prime is 11243453527. The reversal of 11243453505 is 50535434211.

It is not a de Polignac number, because 11243453505 - 2¹³ = 11243445313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7973376 + ... + 7974785.

It is an arithmetic number, because the mean of its divisors is an integer number (1148267664).

Almost surely, 2^11243453505 is an apocalyptic number.

11243453505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11243453505 is a deficient number, since it is larger than the sum of its proper divisors (7128829119).

11243453505 is a wasteful number, since it uses less digits than its factorization.

11243453505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15948216.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 11243453505 its reverse (50535434211), we get a palindrome (61778887716).

The spelling of 11243453505 in words is "eleven billion, two hundred forty-three million, four hundred fifty-three thousand, five hundred five".