1331321132033 has 4 divisors (see below), whose sum is σ = 1337034956868. Its totient is φ = 1325607307200.

The previous prime is 1331321132027. The next prime is 1331321132077. The reversal of 1331321132033 is 3302311231331.

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 690732196609 + 640588935424 = 831103^2 + 800368^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331321132033 - 2⁶ = 1331321131969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331321131993 and 1331321132011.

It is not an unprimeable number, because it can be changed into a prime (1331321132093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2856912068 + ... + 2856912533.

It is an arithmetic number, because the mean of its divisors is an integer number (334258739217).

Almost surely, 2^{1331321132033} is an apocalyptic number.

It is an amenable number.

1331321132033 is a deficient number, since it is larger than the sum of its proper divisors (5713824835).

1331321132033 is an equidigital number, since it uses as much as digits as its factorization.

1331321132033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713824834.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 1331321132033 its reverse (3302311231331), we get a palindrome (4633632363364).

The spelling of 1331321132033 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-one million, one hundred thirty-two thousand, thirty-three".