1143443404331 has 16 divisors (see below), whose sum is σ = 1161998308800. Its totient is φ = 1125085392768.

The previous prime is 1143443404321. The next prime is 1143443404339. The reversal of 1143443404331 is 1334043443411.

It is a cyclic number.

It is not a de Polignac number, because 1143443404331 - 2¹⁸ = 1143443142187 is a prime.

It is a super-2 number, since 2×1143443404331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143443404291 and 1143443404300.

It is not an unprimeable number, because it can be changed into a prime (1143443404339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6529625 + ... + 6702453.

It is an arithmetic number, because the mean of its divisors is an integer number (72624894300).

Almost surely, 2^{1143443404331} is an apocalyptic number.

1143443404331 is a deficient number, since it is larger than the sum of its proper divisors (18554904469).

1143443404331 is a wasteful number, since it uses less digits than its factorization.

1143443404331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173398.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 1143443404331 its reverse (1334043443411), we get a palindrome (2477486847742).

The spelling of 1143443404331 in words is "one trillion, one hundred forty-three billion, four hundred forty-three million, four hundred four thousand, three hundred thirty-one".