4233404323021 has 2 divisors, whose sum is σ = 4233404323022. Its totient is φ = 4233404323020.

The previous prime is 4233404323013. The next prime is 4233404323067. The reversal of 4233404323021 is 1203234043324.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4180348268100 + 53056054921 = 2044590^2 + 230339^2 .

It is a cyclic number.

It is not a de Polignac number, because 4233404323021 - 2³ = 4233404323013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4233404323091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2116702161510 + 2116702161511.

It is an arithmetic number, because the mean of its divisors is an integer number (2116702161511).

Almost surely, 2^{4233404323021} is an apocalyptic number.

It is an amenable number.

4233404323021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4233404323021 is an equidigital number, since it uses as much as digits as its factorization.

4233404323021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 4233404323021 its reverse (1203234043324), we get a palindrome (5436638366345).

The spelling of 4233404323021 in words is "four trillion, two hundred thirty-three billion, four hundred four million, three hundred twenty-three thousand, twenty-one".