11323120331 has 2 divisors, whose sum is σ = 11323120332. Its totient is φ = 11323120330.

The previous prime is 11323120307. The next prime is 11323120463. The reversal of 11323120331 is 13302132311.

11323120331 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 is a cyclic number.

It is not a de Polignac number, because 11323120331 - 2¹⁰ = 11323119307 is a prime.

It is a super-2 number, since 2×11323120331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11323120631) 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, 5661560165 + 5661560166.

It is an arithmetic number, because the mean of its divisors is an integer number (5661560166).

Almost surely, 2^11323120331 is an apocalyptic number.

11323120331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11323120331 is an equidigital number, since it uses as much as digits as its factorization.

11323120331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11323120331 its reverse (13302132311), we get a palindrome (24625252642).

The spelling of 11323120331 in words is "eleven billion, three hundred twenty-three million, one hundred twenty thousand, three hundred thirty-one".