11042402321 has 2 divisors, whose sum is σ = 11042402322. Its totient is φ = 11042402320.

The previous prime is 11042402317. The next prime is 11042402339. The reversal of 11042402321 is 12320424011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11038654225 + 3748096 = 105065^2 + 1936^2 .

It is a cyclic number.

It is not a de Polignac number, because 11042402321 - 2² = 11042402317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11042402293 and 11042402302.

It is not a weakly prime, because it can be changed into another prime (11042402221) 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, 5521201160 + 5521201161.

It is an arithmetic number, because the mean of its divisors is an integer number (5521201161).

Almost surely, 2^11042402321 is an apocalyptic number.

It is an amenable number.

11042402321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11042402321 is an equidigital number, since it uses as much as digits as its factorization.

11042402321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11042402321 its reverse (12320424011), we get a palindrome (23362826332).

The spelling of 11042402321 in words is "eleven billion, forty-two million, four hundred two thousand, three hundred twenty-one".