4052513433421 has 2 divisors, whose sum is σ = 4052513433422. Its totient is φ = 4052513433420.

The previous prime is 4052513433407. The next prime is 4052513433439. The reversal of 4052513433421 is 1243343152504.

4052513433421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3358147875625 + 694365557796 = 1832525^2 + 833286^2 .

It is a cyclic number.

It is not a de Polignac number, because 4052513433421 - 2³⁵ = 4018153695053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4052513433401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2026256716710 + 2026256716711.

It is an arithmetic number, because the mean of its divisors is an integer number (2026256716711).

Almost surely, 2^{4052513433421} is an apocalyptic number.

It is an amenable number.

4052513433421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4052513433421 is an equidigital number, since it uses as much as digits as its factorization.

4052513433421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 4052513433421 its reverse (1243343152504), we get a palindrome (5295856585925).

The spelling of 4052513433421 in words is "four trillion, fifty-two billion, five hundred thirteen million, four hundred thirty-three thousand, four hundred twenty-one".