223111240 has 32 divisors (see below), whose sum is σ = 547637760. Its totient is φ = 81131200.

The previous prime is 223111177. The next prime is 223111241. The reversal of 223111240 is 42111322.

223111240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223111240³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223111241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253096 + ... + 253975.

It is an arithmetic number, because the mean of its divisors is an integer number (17113680).

Almost surely, 2^223111240 is an apocalyptic number.

223111240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223111240 is an abundant number, since it is smaller than the sum of its proper divisors (324526520).

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

223111240 is a wasteful number, since it uses less digits than its factorization.

223111240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507093 (or 507089 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 223111240 is about 14936.9086493826. The cubic root of 223111240 is about 606.5135157962.

Adding to 223111240 its reverse (42111322), we get a palindrome (265222562).

The spelling of 223111240 in words is "two hundred twenty-three million, one hundred eleven thousand, two hundred forty".