11244321561 has 8 divisors (see below), whose sum is σ = 16355376864. Its totient is φ = 6814740320.

The previous prime is 11244321553. The next prime is 11244321563. The reversal of 11244321561 is 16512344211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11244321561 - 2³ = 11244321553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11244321563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170368476 + ... + 170368541.

It is an arithmetic number, because the mean of its divisors is an integer number (2044422108).

Almost surely, 2^11244321561 is an apocalyptic number.

11244321561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11244321561 is a deficient number, since it is larger than the sum of its proper divisors (5111055303).

11244321561 is a wasteful number, since it uses less digits than its factorization.

11244321561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340737031.

The product of its digits is 5760, while the sum is 30.

Adding to 11244321561 its reverse (16512344211), we get a palindrome (27756665772).

The spelling of 11244321561 in words is "eleven billion, two hundred forty-four million, three hundred twenty-one thousand, five hundred sixty-one".