1326253043 has 2 divisors, whose sum is σ = 1326253044. Its totient is φ = 1326253042.

The previous prime is 1326253037. The next prime is 1326253051. The reversal of 1326253043 is 3403526231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1326253043 - 2¹² = 1326248947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1326252997 and 1326253015.

It is not a weakly prime, because it can be changed into another prime (1326253063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663126521 + 663126522.

It is an arithmetic number, because the mean of its divisors is an integer number (663126522).

Almost surely, 2^1326253043 is an apocalyptic number.

1326253043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326253043 is an equidigital number, since it uses as much as digits as its factorization.

1326253043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 1326253043 is about 36417.7572483534. The cubic root of 1326253043 is about 1098.6907406380.

Adding to 1326253043 its reverse (3403526231), we get a palindrome (4729779274).

The spelling of 1326253043 in words is "one billion, three hundred twenty-six million, two hundred fifty-three thousand, forty-three".