142233443321 has 4 divisors (see below), whose sum is σ = 146821618944. Its totient is φ = 137645267700.

The previous prime is 142233443311. The next prime is 142233443369. The reversal of 142233443321 is 123344332241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142233443321 - 2⁶ = 142233443257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142233443311) 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, 2294087765 + ... + 2294087826.

It is an arithmetic number, because the mean of its divisors is an integer number (36705404736).

Almost surely, 2^142233443321 is an apocalyptic number.

It is an amenable number.

142233443321 is a deficient number, since it is larger than the sum of its proper divisors (4588175623).

142233443321 is an equidigital number, since it uses as much as digits as its factorization.

142233443321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588175622.

The product of its digits is 41472, while the sum is 32.

Adding to 142233443321 its reverse (123344332241), we get a palindrome (265577775562).

The spelling of 142233443321 in words is "one hundred forty-two billion, two hundred thirty-three million, four hundred forty-three thousand, three hundred twenty-one".