1143444312331 has 2 divisors, whose sum is σ = 1143444312332. Its totient is φ = 1143444312330.

The previous prime is 1143444312289. The next prime is 1143444312383. The reversal of 1143444312331 is 1332134443411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1143444312331 - 2²⁷ = 1143310094603 is a prime.

It is a super-2 number, since 2×1143444312331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1143444112331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571722156165 + 571722156166.

It is an arithmetic number, because the mean of its divisors is an integer number (571722156166).

Almost surely, 2^{1143444312331} is an apocalyptic number.

1143444312331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143444312331 is an equidigital number, since it uses as much as digits as its factorization.

1143444312331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

Adding to 1143444312331 its reverse (1332134443411), we get a palindrome (2475578755742).

The spelling of 1143444312331 in words is "one trillion, one hundred forty-three billion, four hundred forty-four million, three hundred twelve thousand, three hundred thirty-one".