1330121443 has 8 divisors (see below), whose sum is σ = 1548821088. Its totient is φ = 1118592384.

The previous prime is 1330121417. The next prime is 1330121447. The reversal of 1330121443 is 3441210331.

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

It is not a de Polignac number, because 1330121443 - 2¹³ = 1330113251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330121447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1792246 + ... + 1792987.

It is an arithmetic number, because the mean of its divisors is an integer number (193602636).

Almost surely, 2^1330121443 is an apocalyptic number.

1330121443 is a deficient number, since it is larger than the sum of its proper divisors (218699645).

1330121443 is an equidigital number, since it uses as much as digits as its factorization.

1330121443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585293.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1330121443 is about 36470.8300289423. The cubic root of 1330121443 is about 1099.7579200069.

Adding to 1330121443 its reverse (3441210331), we get a palindrome (4771331774).

The spelling of 1330121443 in words is "one billion, three hundred thirty million, one hundred twenty-one thousand, four hundred forty-three".