1326103263 has 6 divisors (see below), whose sum is σ = 1915482504. Its totient is φ = 884068836.

The previous prime is 1326103253. The next prime is 1326103283. The reversal of 1326103263 is 3623016231.

It is a happy number.

1326103263 is a `hidden beast` number, since 1 + 326 + 10 + 326 + 3 = 666.

It is not a de Polignac number, because 1326103263 - 2¹⁸ = 1325841119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326103253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73672395 + ... + 73672412.

It is an arithmetic number, because the mean of its divisors is an integer number (319247084).

Almost surely, 2^1326103263 is an apocalyptic number.

1326103263 is a deficient number, since it is larger than the sum of its proper divisors (589379241).

1326103263 is a wasteful number, since it uses less digits than its factorization.

1326103263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147344813 (or 147344810 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 1326103263 is about 36415.7007759016. The cubic root of 1326103263 is about 1098.6493789750.

Adding to 1326103263 its reverse (3623016231), we get a palindrome (4949119494).

The spelling of 1326103263 in words is "one billion, three hundred twenty-six million, one hundred three thousand, two hundred sixty-three".