1331335043 has 2 divisors, whose sum is σ = 1331335044. Its totient is φ = 1331335042.

The previous prime is 1331334971. The next prime is 1331335063. The reversal of 1331335043 is 3405331331.

It is a strong prime.

It is an emirp because it is prime and its reverse (3405331331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331335043 - 2¹² = 1331330947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331335063) 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, 665667521 + 665667522.

It is an arithmetic number, because the mean of its divisors is an integer number (665667522).

Almost surely, 2^1331335043 is an apocalyptic number.

1331335043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331335043 is an equidigital number, since it uses as much as digits as its factorization.

1331335043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 26.

The square root of 1331335043 is about 36487.4641897735. The cubic root of 1331335043 is about 1100.0922906037.

Adding to 1331335043 its reverse (3405331331), we get a palindrome (4736666374).

The spelling of 1331335043 in words is "one billion, three hundred thirty-one million, three hundred thirty-five thousand, forty-three".