11423320057 has 2 divisors, whose sum is σ = 11423320058. Its totient is φ = 11423320056.

The previous prime is 11423320039. The next prime is 11423320099. The reversal of 11423320057 is 75002332411.

11423320057 is digitally balanced in base 2, 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., 10324795321 + 1098524736 = 101611^2 + 33144^2 .

It is a cyclic number.

It is not a de Polignac number, because 11423320057 - 2¹⁵ = 11423287289 is a prime.

It is a super-2 number, since 2×11423320057² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11423320037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711660028 + 5711660029.

It is an arithmetic number, because the mean of its divisors is an integer number (5711660029).

Almost surely, 2^11423320057 is an apocalyptic number.

It is an amenable number.

11423320057 is a deficient number, since it is larger than the sum of its proper divisors (1).

11423320057 is an equidigital number, since it uses as much as digits as its factorization.

11423320057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 11423320057 its reverse (75002332411), we get a palindrome (86425652468).

The spelling of 11423320057 in words is "eleven billion, four hundred twenty-three million, three hundred twenty thousand, fifty-seven".