1320441113 has 4 divisors (see below), whose sum is σ = 1335277620. Its totient is φ = 1305604608.

The previous prime is 1320441053. The next prime is 1320441127. The reversal of 1320441113 is 3111440231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3111440231 = 4229 ⋅735739.

It can be written as a sum of positive squares in 2 ways, for example, as 72726784 + 1247714329 = 8528^2 + 35323^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320441113 - 2⁶ = 1320441049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320441193) 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, 7418120 + ... + 7418297.

It is an arithmetic number, because the mean of its divisors is an integer number (333819405).

Almost surely, 2^1320441113 is an apocalyptic number.

It is an amenable number.

1320441113 is a deficient number, since it is larger than the sum of its proper divisors (14836507).

1320441113 is an equidigital number, since it uses as much as digits as its factorization.

1320441113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14836506.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1320441113 is about 36337.8743599567. The cubic root of 1320441113 is about 1097.0834897804.

Adding to 1320441113 its reverse (3111440231), we get a palindrome (4431881344).

The spelling of 1320441113 in words is "one billion, three hundred twenty million, four hundred forty-one thousand, one hundred thirteen".