1143241312240 has 20 divisors (see below), whose sum is σ = 2658036051144. Its totient is φ = 457296524864.

The previous prime is 1143241312229. The next prime is 1143241312247. The reversal of 1143241312240 is 422131423411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1143241312199 and 1143241312208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143241312247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7145258122 + ... + 7145258281.

Almost surely, 2^{1143241312240} is an apocalyptic number.

1143241312240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143241312240 is an abundant number, since it is smaller than the sum of its proper divisors (1514794738904).

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

1143241312240 is a wasteful number, since it uses less digits than its factorization.

1143241312240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14290516416 (or 14290516410 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1143241312240 its reverse (422131423411), we get a palindrome (1565372735651).

The spelling of 1143241312240 in words is "one trillion, one hundred forty-three billion, two hundred forty-one million, three hundred twelve thousand, two hundred forty".