1320020103 has 8 divisors (see below), whose sum is σ = 1807595248. Its totient is φ = 856229184.

The previous prime is 1320020077. The next prime is 1320020161. The reversal of 1320020103 is 3010200231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320020103 - 2⁸ = 1320019847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320020203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5945926 + ... + 5946147.

It is an arithmetic number, because the mean of its divisors is an integer number (225949406).

Almost surely, 2^1320020103 is an apocalyptic number.

1320020103 is a deficient number, since it is larger than the sum of its proper divisors (487575145).

1320020103 is a wasteful number, since it uses less digits than its factorization.

1320020103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11892113.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1320020103 is about 36332.0809065487. The cubic root of 1320020103 is about 1096.9668791990.

Adding to 1320020103 its reverse (3010200231), we get a palindrome (4330220334).

The spelling of 1320020103 in words is "one billion, three hundred twenty million, twenty thousand, one hundred three".