4056521023 has 2 divisors, whose sum is σ = 4056521024. Its totient is φ = 4056521022.

The previous prime is 4056521009. The next prime is 4056521047. The reversal of 4056521023 is 3201256504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4056521023 - 2²⁹ = 3519650111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4056520982 and 4056521000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4056521123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028260511 + 2028260512.

It is an arithmetic number, because the mean of its divisors is an integer number (2028260512).

Almost surely, 2^4056521023 is an apocalyptic number.

4056521023 is a deficient number, since it is larger than the sum of its proper divisors (1).

4056521023 is an equidigital number, since it uses as much as digits as its factorization.

4056521023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 4056521023 is about 63690.8236954116. The cubic root of 4056521023 is about 1594.8429037862.

Adding to 4056521023 its reverse (3201256504), we get a palindrome (7257777527).

The spelling of 4056521023 in words is "four billion, fifty-six million, five hundred twenty-one thousand, twenty-three".