11043400000 has 84 divisors (see below), whose sum is σ = 27391551516. Its totient is φ = 4417280000.

The previous prime is 11043399959. The next prime is 11043400003. The reversal of 11043400000 is 434011.

It can be written as a sum of positive squares in 6 ways, for example, as 8351035456 + 2692364544 = 91384^2 + 51888^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11043400003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172392 + ... + 227608.

It is an arithmetic number, because the mean of its divisors is an integer number (326089899).

Almost surely, 2^11043400000 is an apocalyptic number.

11043400000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11043400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13695775758).

11043400000 is an abundant number, since it is smaller than the sum of its proper divisors (16348151516).

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

11043400000 is an frugal number, since it uses more digits than its factorization.

11043400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55254 (or 55224 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 11043400000 its reverse (434011), we get a palindrome (11043834011).

The spelling of 11043400000 in words is "eleven billion, forty-three million, four hundred thousand".