1331350441 has 4 divisors (see below), whose sum is σ = 1331424000. Its totient is φ = 1331276884.

The previous prime is 1331350439. The next prime is 1331350453. The reversal of 1331350441 is 1440531331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1331350441 - 2¹ = 1331350439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331356441) 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, 11460 + ... + 52858.

It is an arithmetic number, because the mean of its divisors is an integer number (332856000).

Almost surely, 2^1331350441 is an apocalyptic number.

It is an amenable number.

1331350441 is a deficient number, since it is larger than the sum of its proper divisors (73559).

1331350441 is an equidigital number, since it uses as much as digits as its factorization.

1331350441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73558.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1331350441 is about 36487.6751931388. The cubic root of 1331350441 is about 1100.0965317489.

Adding to 1331350441 its reverse (1440531331), we get a palindrome (2771881772).

The spelling of 1331350441 in words is "one billion, three hundred thirty-one million, three hundred fifty thousand, four hundred forty-one".