1143230431040 has 112 divisors (see below), whose sum is σ = 2743669635840. Its totient is φ = 453709731840.

The previous prime is 1143230430997. The next prime is 1143230431067. The reversal of 1143230431040 is 401340323411.

It is a happy number.

It is a congruent number.

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, 77076425 + ... + 77091255.

It is an arithmetic number, because the mean of its divisors is an integer number (24497050320).

Almost surely, 2^{1143230431040} is an apocalyptic number.

1143230431040 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 1143230431040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1371834817920).

1143230431040 is an abundant number, since it is smaller than the sum of its proper divisors (1600439204800).

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

1143230431040 is a wasteful number, since it uses less digits than its factorization.

1143230431040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16720 (or 16710 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1143230431040 its reverse (401340323411), we get a palindrome (1544570754451).

The spelling of 1143230431040 in words is "one trillion, one hundred forty-three billion, two hundred thirty million, four hundred thirty-one thousand, forty".