1320103444 has 12 divisors (see below), whose sum is σ = 2520197568. Its totient is φ = 600047000.

The previous prime is 1320103441. The next prime is 1320103487. The reversal of 1320103444 is 4443010231.

It is a super-2 number, since 2×1320103444² = 3485346205721322272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320103441) 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, 15001132 + ... + 15001219.

It is an arithmetic number, because the mean of its divisors is an integer number (210016464).

Almost surely, 2^1320103444 is an apocalyptic number.

It is an amenable number.

1320103444 is a deficient number, since it is larger than the sum of its proper divisors (1200094124).

1320103444 is a wasteful number, since it uses less digits than its factorization.

1320103444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30002366 (or 30002364 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1320103444 is about 36333.2278224768. The cubic root of 1320103444 is about 1096.9899648051.

Adding to 1320103444 its reverse (4443010231), we get a palindrome (5763113675).

The spelling of 1320103444 in words is "one billion, three hundred twenty million, one hundred three thousand, four hundred forty-four".