1143144031 has 2 divisors, whose sum is σ = 1143144032. Its totient is φ = 1143144030.

The previous prime is 1143143993. The next prime is 1143144043. The reversal of 1143144031 is 1304413411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143144031 - 2¹³ = 1143135839 is a prime.

It is a super-2 number, since 2×1143144031² = 2613556551221857922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1143143993 and 1143144011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143144061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571572015 + 571572016.

It is an arithmetic number, because the mean of its divisors is an integer number (571572016).

Almost surely, 2^1143144031 is an apocalyptic number.

1143144031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143144031 is an equidigital number, since it uses as much as digits as its factorization.

1143144031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1143144031 is about 33810.4130557436. The cubic root of 1143144031 is about 1045.6033941151.

Adding to 1143144031 its reverse (1304413411), we get a palindrome (2447557442).

The spelling of 1143144031 in words is "one billion, one hundred forty-three million, one hundred forty-four thousand, thirty-one".