223031030112 has 144 divisors (see below), whose sum is σ = 692174403648. Its totient is φ = 67558659840.

The previous prime is 223031030003. The next prime is 223031030113. The reversal of 223031030112 is 211030130322.

223031030112 is a `hidden beast` number, since 22 + 30 + 310 + 301 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223031030113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8994243 + ... + 9019005.

It is an arithmetic number, because the mean of its divisors is an integer number (4806766692).

Almost surely, 2^223031030112 is an apocalyptic number.

223031030112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223031030112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346087201824).

223031030112 is an abundant number, since it is smaller than the sum of its proper divisors (469143373536).

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

223031030112 is a wasteful number, since it uses less digits than its factorization.

223031030112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27633 (or 27622 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 223031030112 its reverse (211030130322), we get a palindrome (434061160434).

The spelling of 223031030112 in words is "two hundred twenty-three billion, thirty-one million, thirty thousand, one hundred twelve".