11413256521573 has 2 divisors, whose sum is σ = 11413256521574. Its totient is φ = 11413256521572.

The previous prime is 11413256521523. The next prime is 11413256521609. The reversal of 11413256521573 is 37512565231411.

11413256521573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9277031655684 + 2136224865889 = 3045822^2 + 1461583^2 .

It is a cyclic number.

It is not a de Polignac number, because 11413256521573 - 2⁹ = 11413256521061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11413256521523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5706628260786 + 5706628260787.

It is an arithmetic number, because the mean of its divisors is an integer number (5706628260787).

Almost surely, 2^{11413256521573} is an apocalyptic number.

It is an amenable number.

11413256521573 is a deficient number, since it is larger than the sum of its proper divisors (1).

11413256521573 is an equidigital number, since it uses as much as digits as its factorization.

11413256521573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 46.

The spelling of 11413256521573 in words is "eleven trillion, four hundred thirteen billion, two hundred fifty-six million, five hundred twenty-one thousand, five hundred seventy-three".