11424256321 has 2 divisors, whose sum is σ = 11424256322. Its totient is φ = 11424256320.

The previous prime is 11424256313. The next prime is 11424256367. The reversal of 11424256321 is 12365242411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6230892096 + 5193364225 = 78936^2 + 72065^2 .

It is a cyclic number.

It is not a de Polignac number, because 11424256321 - 2³ = 11424256313 is a prime.

It is not a weakly prime, because it can be changed into another prime (11424256381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5712128160 + 5712128161.

It is an arithmetic number, because the mean of its divisors is an integer number (5712128161).

Almost surely, 2^11424256321 is an apocalyptic number.

It is an amenable number.

11424256321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11424256321 is an equidigital number, since it uses as much as digits as its factorization.

11424256321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 31.

Adding to 11424256321 its reverse (12365242411), we get a palindrome (23789498732).

The spelling of 11424256321 in words is "eleven billion, four hundred twenty-four million, two hundred fifty-six thousand, three hundred twenty-one".