423334444433333 has 2 divisors, whose sum is σ = 423334444433334. Its totient is φ = 423334444433332.

The previous prime is 423334444433323. The next prime is 423334444433371. The reversal of 423334444433333 is 333334444433324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422696206418929 + 638238014404 = 20559577^2 + 798898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423334444433333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423334444433323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211667222216666 + 211667222216667.

It is an arithmetic number, because the mean of its divisors is an integer number (211667222216667).

Almost surely, 2^{423334444433333} is an apocalyptic number.

It is an amenable number.

423334444433333 is a deficient number, since it is larger than the sum of its proper divisors (1).

423334444433333 is an equidigital number, since it uses as much as digits as its factorization.

423334444433333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53747712, while the sum is 50.

Adding to 423334444433333 its reverse (333334444433324), we get a palindrome (756668888866657).

Subtracting from 423334444433333 its reverse (333334444433324), we obtain a palindrome (90000000000009).

The spelling of 423334444433333 in words is "four hundred twenty-three trillion, three hundred thirty-four billion, four hundred forty-four million, four hundred thirty-three thousand, three hundred thirty-three".