1331144341 has 4 divisors (see below), whose sum is σ = 1377045900. Its totient is φ = 1285242784.

The previous prime is 1331144329. The next prime is 1331144369. The reversal of 1331144341 is 1434411331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1434411331 = 5879 ⋅243989.

It can be written as a sum of positive squares in 2 ways, for example, as 1058200900 + 272943441 = 32530^2 + 16521^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331144341 - 2²¹ = 1329047189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331144041) 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, 22950736 + ... + 22950793.

It is an arithmetic number, because the mean of its divisors is an integer number (344261475).

Almost surely, 2^1331144341 is an apocalyptic number.

It is an amenable number.

1331144341 is a deficient number, since it is larger than the sum of its proper divisors (45901559).

1331144341 is an equidigital number, since it uses as much as digits as its factorization.

1331144341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45901558.

The product of its digits is 1728, while the sum is 25.

The square root of 1331144341 is about 36484.8508425072. The cubic root of 1331144341 is about 1100.0397619236.

Adding to 1331144341 its reverse (1434411331), we get a palindrome (2765555672).

The spelling of 1331144341 in words is "one billion, three hundred thirty-one million, one hundred forty-four thousand, three hundred forty-one".