4433040341021 has 2 divisors, whose sum is σ = 4433040341022. Its totient is φ = 4433040341020.

The previous prime is 4433040340999. The next prime is 4433040341057. The reversal of 4433040341021 is 1201430403344.

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., 2561315368921 + 1871724972100 = 1600411^2 + 1368110^2 .

It is a cyclic number.

It is not a de Polignac number, because 4433040341021 - 2²⁶ = 4432973232157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4433040341071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2216520170510 + 2216520170511.

It is an arithmetic number, because the mean of its divisors is an integer number (2216520170511).

Almost surely, 2^{4433040341021} is an apocalyptic number.

It is an amenable number.

4433040341021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4433040341021 is an equidigital number, since it uses as much as digits as its factorization.

4433040341021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 4433040341021 its reverse (1201430403344), we get a palindrome (5634470744365).

The spelling of 4433040341021 in words is "four trillion, four hundred thirty-three billion, forty million, three hundred forty-one thousand, twenty-one".