1331141543 has 2 divisors, whose sum is σ = 1331141544. Its totient is φ = 1331141542.

The previous prime is 1331141509. The next prime is 1331141551. The reversal of 1331141543 is 3451411331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331141543 - 2¹⁰ = 1331140519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331141503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665570771 + 665570772.

It is an arithmetic number, because the mean of its divisors is an integer number (665570772).

Almost surely, 2^1331141543 is an apocalyptic number.

1331141543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331141543 is an equidigital number, since it uses as much as digits as its factorization.

1331141543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 1331141543 is about 36484.8124978052. The cubic root of 1331141543 is about 1100.0389911799.

Adding to 1331141543 its reverse (3451411331), we get a palindrome (4782552874).

The spelling of 1331141543 in words is "one billion, three hundred thirty-one million, one hundred forty-one thousand, five hundred forty-three".