1331434241 has 4 divisors (see below), whose sum is σ = 1362397872. Its totient is φ = 1300470612.

The previous prime is 1331434231. The next prime is 1331434243. The reversal of 1331434241 is 1424341331.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1331434241 - 2³⁰ = 257692417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1331434241.

It is not an unprimeable number, because it can be changed into a prime (1331434243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15481751 + ... + 15481836.

It is an arithmetic number, because the mean of its divisors is an integer number (340599468).

Almost surely, 2^1331434241 is an apocalyptic number.

It is an amenable number.

1331434241 is a deficient number, since it is larger than the sum of its proper divisors (30963631).

1331434241 is an equidigital number, since it uses as much as digits as its factorization.

1331434241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30963630.

The product of its digits is 3456, while the sum is 26.

The square root of 1331434241 is about 36488.8235080278. The cubic root of 1331434241 is about 1100.1196126128.

Adding to 1331434241 its reverse (1424341331), we get a palindrome (2755775572).

The spelling of 1331434241 in words is "one billion, three hundred thirty-one million, four hundred thirty-four thousand, two hundred forty-one".