1143411331 has 2 divisors, whose sum is σ = 1143411332. Its totient is φ = 1143411330.

The previous prime is 1143411307. The next prime is 1143411349. The reversal of 1143411331 is 1331143411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143411331 - 2⁹ = 1143410819 is a prime.

It is a super-2 number, since 2×1143411331² = 2614778943718383122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1143411371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571705665 + 571705666.

It is an arithmetic number, because the mean of its divisors is an integer number (571705666).

Almost surely, 2^1143411331 is an apocalyptic number.

1143411331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143411331 is an equidigital number, since it uses as much as digits as its factorization.

1143411331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 1143411331 is about 33814.3657488944. The cubic root of 1143411331 is about 1045.6848851603.

Adding to 1143411331 its reverse (1331143411), we get a palindrome (2474554742).

The spelling of 1143411331 in words is "one billion, one hundred forty-three million, four hundred eleven thousand, three hundred thirty-one".