1312230340133 has 4 divisors (see below), whose sum is σ = 1312370830188. Its totient is φ = 1312089850080.

The previous prime is 1312230340111. The next prime is 1312230340151. The reversal of 1312230340133 is 3310430322131.

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 203204411524 + 1109025928609 = 450782^2 + 1053103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312230340133 - 2⁸ = 1312230339877 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 (1312230840133) 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, 70231016 + ... + 70249697.

It is an arithmetic number, because the mean of its divisors is an integer number (328092707547).

Almost surely, 2^{1312230340133} is an apocalyptic number.

It is an amenable number.

1312230340133 is a deficient number, since it is larger than the sum of its proper divisors (140490055).

1312230340133 is an equidigital number, since it uses as much as digits as its factorization.

1312230340133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140490054.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1312230340133 its reverse (3310430322131), we get a palindrome (4622660662264).

The spelling of 1312230340133 in words is "one trillion, three hundred twelve billion, two hundred thirty million, three hundred forty thousand, one hundred thirty-three".