4243234133321 has 4 divisors (see below), whose sum is σ = 4301360628372. Its totient is φ = 4185107638272.

The previous prime is 4243234133279. The next prime is 4243234133371. The reversal of 4243234133321 is 1233314323424.

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 2857245934921 + 1385988198400 = 1690339^2 + 1177280^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243234133321 - 2¹⁰ = 4243234132297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4243234133371) 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, 29063247416 + ... + 29063247561.

It is an arithmetic number, because the mean of its divisors is an integer number (1075340157093).

Almost surely, 2^{4243234133321} is an apocalyptic number.

It is an amenable number.

4243234133321 is a deficient number, since it is larger than the sum of its proper divisors (58126495051).

4243234133321 is an equidigital number, since it uses as much as digits as its factorization.

4243234133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58126495050.

The product of its digits is 124416, while the sum is 35.

Adding to 4243234133321 its reverse (1233314323424), we get a palindrome (5476548456745).

The spelling of 4243234133321 in words is "four trillion, two hundred forty-three billion, two hundred thirty-four million, one hundred thirty-three thousand, three hundred twenty-one".