1213443234001 has 4 divisors (see below), whose sum is σ = 1213445619252. Its totient is φ = 1213440848752.

The previous prime is 1213443233993. The next prime is 1213443234007. The reversal of 1213443234001 is 1004323443121.

It is a happy number.

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 872124383376 + 341318850625 = 933876^2 + 584225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213443234001 - 2³ = 1213443233993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213443234007) 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, 89290 + ... + 1560403.

It is an arithmetic number, because the mean of its divisors is an integer number (303361404813).

Almost surely, 2^{1213443234001} is an apocalyptic number.

It is an amenable number.

1213443234001 is a deficient number, since it is larger than the sum of its proper divisors (2385251).

1213443234001 is an equidigital number, since it uses as much as digits as its factorization.

1213443234001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385250.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1213443234001 its reverse (1004323443121), we get a palindrome (2217766677122).

It can be divided in two parts, 121344 and 3234001, that added together give a triangular number (3355345 = T₂₅₉₀).

The spelling of 1213443234001 in words is "one trillion, two hundred thirteen billion, four hundred forty-three million, two hundred thirty-four thousand, one".