1328811503 has 2 divisors, whose sum is σ = 1328811504. Its totient is φ = 1328811502.

The previous prime is 1328811461. The next prime is 1328811527. The reversal of 1328811503 is 3051188231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1328811503 - 2¹² = 1328807407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1328811503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328811553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664405751 + 664405752.

It is an arithmetic number, because the mean of its divisors is an integer number (664405752).

Almost surely, 2^1328811503 is an apocalyptic number.

1328811503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328811503 is an equidigital number, since it uses as much as digits as its factorization.

1328811503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1328811503 is about 36452.8668694247. The cubic root of 1328811503 is about 1099.3967775273.

Adding to 1328811503 its reverse (3051188231), we get a palindrome (4379999734).

The spelling of 1328811503 in words is "one billion, three hundred twenty-eight million, eight hundred eleven thousand, five hundred three".