1326263043 has 16 divisors (see below), whose sum is σ = 2059105536. Its totient is φ = 743564640.

The previous prime is 1326263027. The next prime is 1326263063. The reversal of 1326263043 is 3403626231.

It is not a de Polignac number, because 1326263043 - 2⁴ = 1326263027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1326263043.

It is not an unprimeable number, because it can be changed into a prime (1326263063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594693 + ... + 596918.

It is an arithmetic number, because the mean of its divisors is an integer number (128694096).

Almost surely, 2^1326263043 is an apocalyptic number.

1326263043 is a deficient number, since it is larger than the sum of its proper divisors (732842493).

1326263043 is a wasteful number, since it uses less digits than its factorization.

1326263043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191674.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 1326263043 is about 36417.8945437542. The cubic root of 1326263043 is about 1098.6935020215.

Adding to 1326263043 its reverse (3403626231), we get a palindrome (4729889274).

The spelling of 1326263043 in words is "one billion, three hundred twenty-six million, two hundred sixty-three thousand, forty-three".