1143242231444 has 12 divisors (see below), whose sum is σ = 2006341538964. Its totient is φ = 570001791744.

The previous prime is 1143242231441. The next prime is 1143242231447. The reversal of 1143242231444 is 4441322423411.

It is an interprime number because it is at equal distance from previous prime (1143242231441) and next prime (1143242231447).

It can be written as a sum of positive squares in 2 ways, for example, as 493944707344 + 649297524100 = 702812^2 + 805790^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143242231441) 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, 404829407 + ... + 404832230.

It is an arithmetic number, because the mean of its divisors is an integer number (167195128247).

Almost surely, 2^{1143242231444} is an apocalyptic number.

It is an amenable number.

1143242231444 is a deficient number, since it is larger than the sum of its proper divisors (863099307520).

1143242231444 is a wasteful number, since it uses less digits than its factorization.

1143242231444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809661994 (or 809661992 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

Adding to 1143242231444 its reverse (4441322423411), we get a palindrome (5584564654855).

The spelling of 1143242231444 in words is "one trillion, one hundred forty-three billion, two hundred forty-two million, two hundred thirty-one thousand, four hundred forty-four".