11243244551 has 16 divisors (see below), whose sum is σ = 14080432128. Its totient is φ = 8721669600.

The previous prime is 11243244541. The next prime is 11243244601. The reversal of 11243244551 is 15544234211.

It is not a de Polignac number, because 11243244551 - 2⁶ = 11243244487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11243244521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310220 + ... + 344561.

It is an arithmetic number, because the mean of its divisors is an integer number (880027008).

Almost surely, 2^11243244551 is an apocalyptic number.

11243244551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11243244551 is a deficient number, since it is larger than the sum of its proper divisors (2837187577).

11243244551 is a wasteful number, since it uses less digits than its factorization.

11243244551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655022.

The product of its digits is 19200, while the sum is 32.

Adding to 11243244551 its reverse (15544234211), we get a palindrome (26787478762).

The spelling of 11243244551 in words is "eleven billion, two hundred forty-three million, two hundred forty-four thousand, five hundred fifty-one".