11311222230 has 144 divisors (see below), whose sum is σ = 37320897744. Its totient is φ = 2350373760.

The previous prime is 11311222171. The next prime is 11311222277. The reversal of 11311222230 is 3222211311.

11311222230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 in 71 ways as a sum of consecutive naturals, for example, 68077 + ... + 165096.

It is an arithmetic number, because the mean of its divisors is an integer number (259172901).

Almost surely, 2^11311222230 is an apocalyptic number.

11311222230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311222230 is an abundant number, since it is smaller than the sum of its proper divisors (26009675514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11311222230 is a wasteful number, since it uses less digits than its factorization.

11311222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233211 (or 233201 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11311222230 its reverse (3222211311), we get a palindrome (14533433541).

The spelling of 11311222230 in words is "eleven billion, three hundred eleven million, two hundred twenty-two thousand, two hundred thirty".