1313202021133 has 4 divisors (see below), whose sum is σ = 1313205020028. Its totient is φ = 1313199022240.

The previous prime is 1313202021107. The next prime is 1313202021163. The reversal of 1313202021133 is 3311202023131.

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 337210167204 + 975991853929 = 580698^2 + 987923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313202021133 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 (1313202021163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700816 + ... + 1765657.

It is an arithmetic number, because the mean of its divisors is an integer number (328301255007).

Almost surely, 2^{1313202021133} is an apocalyptic number.

It is an amenable number.

1313202021133 is a deficient number, since it is larger than the sum of its proper divisors (2998895).

1313202021133 is an equidigital number, since it uses as much as digits as its factorization.

1313202021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998894.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1313202021133 its reverse (3311202023131), we get a palindrome (4624404044264).

The spelling of 1313202021133 in words is "one trillion, three hundred thirteen billion, two hundred two million, twenty-one thousand, one hundred thirty-three".