1105243040000 has 270 divisors, whose sum is σ = 3030285990270. Its totient is φ = 401899520000.

The previous prime is 1105243039987. The next prime is 1105243040029. The reversal of 1105243040000 is 403425011.

It can be written as a sum of positive squares in 5 ways, for example, as 475746785536 + 629496254464 = 689744^2 + 793408^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 19331456 + ... + 19388544.

Almost surely, 2^{1105243040000} is an apocalyptic number.

1105243040000 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 1105243040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515142995135).

1105243040000 is an abundant number, since it is smaller than the sum of its proper divisors (1925042950270).

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

1105243040000 is an frugal number, since it uses more digits than its factorization.

1105243040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57147 (or 57107 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 1105243040000 its reverse (403425011), we get a palindrome (1105646465011).

The spelling of 1105243040000 in words is "one trillion, one hundred five billion, two hundred forty-three million, forty thousand".