1143030442240 has 144 divisors (see below), whose sum is σ = 2883946806720. Its totient is φ = 432858193920.

The previous prime is 1143030442171. The next prime is 1143030442241. The reversal of 1143030442240 is 422440303411.

It is a junction number, because it is equal to n+sod(n) for n = 1143030442199 and 1143030442208.

It is not an unprimeable number, because it can be changed into a prime (1143030442241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38191762 + ... + 38221678.

It is an arithmetic number, because the mean of its divisors is an integer number (20027408380).

Almost surely, 2^{1143030442240} is an apocalyptic number.

1143030442240 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 1143030442240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1441973403360).

1143030442240 is an abundant number, since it is smaller than the sum of its proper divisors (1740916364480).

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

1143030442240 is a wasteful number, since it uses less digits than its factorization.

1143030442240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31528 (or 31514 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1143030442240 its reverse (422440303411), we get a palindrome (1565470745651).

The spelling of 1143030442240 in words is "one trillion, one hundred forty-three billion, thirty million, four hundred forty-two thousand, two hundred forty".