11042311440 has 80 divisors (see below), whose sum is σ = 35411572800. Its totient is φ = 2843076096.

The previous prime is 11042311433. The next prime is 11042311471. The reversal of 11042311440 is 4411324011.

It is a tau number, because it is divible by the number of its divisors (80).

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, 786310 + ... + 800229.

It is an arithmetic number, because the mean of its divisors is an integer number (442644660).

Almost surely, 2^11042311440 is an apocalyptic number.

11042311440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11042311440 is an abundant number, since it is smaller than the sum of its proper divisors (24369261360).

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

11042311440 is a wasteful number, since it uses less digits than its factorization.

11042311440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586584 (or 1586578 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11042311440 its reverse (4411324011), we get a palindrome (15453635451).

The spelling of 11042311440 in words is "eleven billion, forty-two million, three hundred eleven thousand, four hundred forty".