11112232230 has 72 divisors (see below), whose sum is σ = 31757137776. Its totient is φ = 2693871840.

The previous prime is 11112232211. The next prime is 11112232279. The reversal of 11112232230 is 3223221111.

11112232230 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 Curzon number.

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 35 ways as a sum of consecutive naturals, for example, 499314 + ... + 521093.

It is an arithmetic number, because the mean of its divisors is an integer number (441071358).

Almost surely, 2^11112232230 is an apocalyptic number.

11112232230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11112232230 is an abundant number, since it is smaller than the sum of its proper divisors (20644905546).

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

11112232230 is a wasteful number, since it uses less digits than its factorization.

11112232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020442 (or 1020428 counting only the distinct ones).

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

Adding to 11112232230 its reverse (3223221111), we get a palindrome (14335453341).

It can be divided in two parts, 11112 and 232230, that added together give a palindrome (243342).

The spelling of 11112232230 in words is "eleven billion, one hundred twelve million, two hundred thirty-two thousand, two hundred thirty".