1320806103 has 16 divisors (see below), whose sum is σ = 1845989376. Its totient is φ = 839079360.

The previous prime is 1320806089. The next prime is 1320806107. The reversal of 1320806103 is 3016080231.

It is not a de Polignac number, because 1320806103 - 2⁸ = 1320805847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320806107) 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, 119575 + ... + 130152.

It is an arithmetic number, because the mean of its divisors is an integer number (115374336).

Almost surely, 2^1320806103 is an apocalyptic number.

1320806103 is a deficient number, since it is larger than the sum of its proper divisors (525183273).

1320806103 is a wasteful number, since it uses less digits than its factorization.

1320806103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249814.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1320806103 is about 36342.8961834359. The cubic root of 1320806103 is about 1097.1845639871.

Adding to 1320806103 its reverse (3016080231), we get a palindrome (4336886334).

The spelling of 1320806103 in words is "one billion, three hundred twenty million, eight hundred six thousand, one hundred three".