11231223313 has 2 divisors, whose sum is σ = 11231223314. Its totient is φ = 11231223312.

The previous prime is 11231223301. The next prime is 11231223319. The reversal of 11231223313 is 31332213211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9677050384 + 1554172929 = 98372^2 + 39423^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231223313 - 2⁹ = 11231222801 is a prime.

It is a super-2 number, since 2×11231223313² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11231223319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615611656 + 5615611657.

It is an arithmetic number, because the mean of its divisors is an integer number (5615611657).

Almost surely, 2^11231223313 is an apocalyptic number.

It is an amenable number.

11231223313 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231223313 is an equidigital number, since it uses as much as digits as its factorization.

11231223313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

Adding to 11231223313 its reverse (31332213211), we get a palindrome (42563436524).

The spelling of 11231223313 in words is "eleven billion, two hundred thirty-one million, two hundred twenty-three thousand, three hundred thirteen".