11113344440 has 32 divisors (see below), whose sum is σ = 27278210160. Its totient is φ = 4041216000.

The previous prime is 11113344427. The next prime is 11113344443. The reversal of 11113344440 is 4444331111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113344443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12628361 + ... + 12629240.

Almost surely, 2^11113344440 is an apocalyptic number.

11113344440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11113344440 is an abundant number, since it is smaller than the sum of its proper divisors (16164865720).

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

11113344440 is a wasteful number, since it uses less digits than its factorization.

11113344440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25257623 (or 25257619 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11113344440 its reverse (4444331111), we get a palindrome (15557675551).

It can be divided in two parts, 11113 and 344440, that added together give a palindrome (355553).

The spelling of 11113344440 in words is "eleven billion, one hundred thirteen million, three hundred forty-four thousand, four hundred forty".