11421040044 has 48 divisors (see below), whose sum is σ = 27470596608. Its totient is φ = 3691171008.

The previous prime is 11421040027. The next prime is 11421040051. The reversal of 11421040044 is 44004012411.

It is a self number, because there is not a number n which added to its sum of digits gives 11421040044.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34279 + ... + 154974.

It is an arithmetic number, because the mean of its divisors is an integer number (572304096).

Almost surely, 2^11421040044 is an apocalyptic number.

It is an amenable number.

11421040044 is an abundant number, since it is smaller than the sum of its proper divisors (16049556564).

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

11421040044 is a wasteful number, since it uses less digits than its factorization.

11421040044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189414 (or 189412 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 11421040044 its reverse (44004012411), we get a palindrome (55425052455).

The spelling of 11421040044 in words is "eleven billion, four hundred twenty-one million, forty thousand, forty-four".