1330320241 has 4 divisors (see below), whose sum is σ = 1335840484. Its totient is φ = 1324800000.

The previous prime is 1330320239. The next prime is 1330320247. The reversal of 1330320241 is 1420230331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1420230331 = 13 ⋅109248487.

It can be written as a sum of positive squares in 2 ways, for example, as 1120910400 + 209409841 = 33480^2 + 14471^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330320241 - 2¹ = 1330320239 is a prime.

It is a super-2 number, since 2×1330320241² = 3539503887228596162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330320247) 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, 2759760 + ... + 2760241.

It is an arithmetic number, because the mean of its divisors is an integer number (333960121).

Almost surely, 2^1330320241 is an apocalyptic number.

It is an amenable number.

1330320241 is a deficient number, since it is larger than the sum of its proper divisors (5520243).

1330320241 is an equidigital number, since it uses as much as digits as its factorization.

1330320241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520242.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1330320241 is about 36473.5553654973. Note that the first 3 decimals coincide. The cubic root of 1330320241 is about 1099.8127066795.

Adding to 1330320241 its reverse (1420230331), we get a palindrome (2750550572).

The spelling of 1330320241 in words is "one billion, three hundred thirty million, three hundred twenty thousand, two hundred forty-one".