11111242344 has 32 divisors (see below), whose sum is σ = 27793792320. Its totient is φ = 3701655936.

The previous prime is 11111242343. The next prime is 11111242367. The reversal of 11111242344 is 44324211111.

It is a happy number.

It is a super-2 number, since 2×11111242344² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11111242343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87037 + ... + 172620.

It is an arithmetic number, because the mean of its divisors is an integer number (868556010).

Almost surely, 2^11111242344 is an apocalyptic number.

It is an amenable number.

11111242344 is an abundant number, since it is smaller than the sum of its proper divisors (16682549976).

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

11111242344 is a wasteful number, since it uses less digits than its factorization.

11111242344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261449 (or 261445 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

Adding to 11111242344 its reverse (44324211111), we get a palindrome (55435453455).

The spelling of 11111242344 in words is "eleven billion, one hundred eleven million, two hundred forty-two thousand, three hundred forty-four".