1320202043 has 2 divisors, whose sum is σ = 1320202044. Its totient is φ = 1320202042.

The previous prime is 1320202021. The next prime is 1320202049. The reversal of 1320202043 is 3402020231.

It is a strong prime.

It is an emirp because it is prime and its reverse (3402020231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320202043 - 2⁶ = 1320201979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320202049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660101021 + 660101022.

It is an arithmetic number, because the mean of its divisors is an integer number (660101022).

Almost surely, 2^1320202043 is an apocalyptic number.

1320202043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320202043 is an equidigital number, since it uses as much as digits as its factorization.

1320202043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1320202043 is about 36334.5846680542. The cubic root of 1320202043 is about 1097.0172756499.

Adding to 1320202043 its reverse (3402020231), we get a palindrome (4722222274).

The spelling of 1320202043 in words is "one billion, three hundred twenty million, two hundred two thousand, forty-three".