11311434223 has 4 divisors (see below), whose sum is σ = 11365043128. Its totient is φ = 11257825320.

The previous prime is 11311434221. The next prime is 11311434241. The reversal of 11311434223 is 32243411311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11311434223 - 2¹ = 11311434221 is a prime.

It is a super-2 number, since 2×11311434223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311434221) 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 in 3 ways as a sum of consecutive naturals, for example, 26804136 + ... + 26804557.

It is an arithmetic number, because the mean of its divisors is an integer number (2841260782).

Almost surely, 2^11311434223 is an apocalyptic number.

11311434223 is a deficient number, since it is larger than the sum of its proper divisors (53608905).

11311434223 is an equidigital number, since it uses as much as digits as its factorization.

11311434223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53608904.

The product of its digits is 1728, while the sum is 25.

Adding to 11311434223 its reverse (32243411311), we get a palindrome (43554845534).

The spelling of 11311434223 in words is "eleven billion, three hundred eleven million, four hundred thirty-four thousand, two hundred twenty-three".