1320220103 has 4 divisors (see below), whose sum is σ = 1320573240. Its totient is φ = 1319866968.

The previous prime is 1320220093. The next prime is 1320220123. The reversal of 1320220103 is 3010220231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3010220231 = 181 ⋅16631051.

It is a cyclic number.

It is not a de Polignac number, because 1320220103 - 2⁶ = 1320220039 is a prime.

It is a super-2 number, since 2×1320220103² = 3485962240730661218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320220123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170900 + ... + 178457.

It is an arithmetic number, because the mean of its divisors is an integer number (330143310).

Almost surely, 2^1320220103 is an apocalyptic number.

1320220103 is a deficient number, since it is larger than the sum of its proper divisors (353137).

1320220103 is an equidigital number, since it uses as much as digits as its factorization.

1320220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353136.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1320220103 is about 36334.8331907551. The cubic root of 1320220103 is about 1097.0222779251.

Adding to 1320220103 its reverse (3010220231), we get a palindrome (4330440334).

The spelling of 1320220103 in words is "one billion, three hundred twenty million, two hundred twenty thousand, one hundred three".