1331144241 has 32 divisors (see below), whose sum is σ = 2076921600. Its totient is φ = 758040192.

The previous prime is 1331144239. The next prime is 1331144261. The reversal of 1331144241 is 1424411331.

It is not a de Polignac number, because 1331144241 - 2¹ = 1331144239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331144201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320011 + ... + 324143.

It is an arithmetic number, because the mean of its divisors is an integer number (64903800).

Almost surely, 2^1331144241 is an apocalyptic number.

It is an amenable number.

1331144241 is a deficient number, since it is larger than the sum of its proper divisors (745777359).

1331144241 is an equidigital number, since it uses as much as digits as its factorization.

1331144241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470 (or 4456 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 1331144241 is about 36484.8494720754. The cubic root of 1331144241 is about 1100.0397343774.

Adding to 1331144241 its reverse (1424411331), we get a palindrome (2755555572).

The spelling of 1331144241 in words is "one billion, three hundred thirty-one million, one hundred forty-four thousand, two hundred forty-one".