1356331433441 has 4 divisors (see below), whose sum is σ = 1403101482900. Its totient is φ = 1309561383984.

The previous prime is 1356331433437. The next prime is 1356331433477. The reversal of 1356331433441 is 1443341336531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 407655433441 + 948676000000 = 638479^2 + 974000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356331433441 - 2² = 1356331433437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1356331733441) 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, 23385024686 + ... + 23385024743.

It is an arithmetic number, because the mean of its divisors is an integer number (350775370725).

Almost surely, 2^{1356331433441} is an apocalyptic number.

It is an amenable number.

1356331433441 is a deficient number, since it is larger than the sum of its proper divisors (46770049459).

1356331433441 is an equidigital number, since it uses as much as digits as its factorization.

1356331433441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46770049458.

The product of its digits is 466560, while the sum is 41.

Adding to 1356331433441 its reverse (1443341336531), we get a palindrome (2799672769972).

The spelling of 1356331433441 in words is "one trillion, three hundred fifty-six billion, three hundred thirty-one million, four hundred thirty-three thousand, four hundred forty-one".