1312230020033 has 4 divisors (see below), whose sum is σ = 1312234838868. Its totient is φ = 1312225201200.

The previous prime is 1312230019951. The next prime is 1312230020051. The reversal of 1312230020033 is 3300200322131.

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 823416500929 + 488813519104 = 907423^2 + 699152^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312230020033 - 2²⁰ = 1312228971457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312230019987 and 1312230020014.

It is not an unprimeable number, because it can be changed into a prime (1312230020063) 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, 1974818 + ... + 2554283.

It is an arithmetic number, because the mean of its divisors is an integer number (328058709717).

Almost surely, 2^{1312230020033} is an apocalyptic number.

It is an amenable number.

1312230020033 is a deficient number, since it is larger than the sum of its proper divisors (4818835).

1312230020033 is an equidigital number, since it uses as much as digits as its factorization.

1312230020033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818834.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1312230020033 its reverse (3300200322131), we get a palindrome (4612430342164).

The spelling of 1312230020033 in words is "one trillion, three hundred twelve billion, two hundred thirty million, twenty thousand, thirty-three".