11111334144 has 72 divisors (see below), whose sum is σ = 29989012032. Its totient is φ = 3651594240.

The previous prime is 11111334133. The next prime is 11111334151. The reversal of 11111334144 is 44143311111.

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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47359 + ... + 156414.

It is an arithmetic number, because the mean of its divisors is an integer number (416514056).

Almost surely, 2^11111334144 is an apocalyptic number.

It is an amenable number.

11111334144 is an abundant number, since it is smaller than the sum of its proper divisors (18877677888).

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

11111334144 is an equidigital number, since it uses as much as digits as its factorization.

11111334144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203863 (or 203849 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

Adding to 11111334144 its reverse (44143311111), we get a palindrome (55254645255).

The spelling of 11111334144 in words is "eleven billion, one hundred eleven million, three hundred thirty-four thousand, one hundred forty-four".