223112100312 has 48 divisors (see below), whose sum is σ = 609909267240. Its totient is φ = 73675644288.

The previous prime is 223112100311. The next prime is 223112100317. The reversal of 223112100312 is 213001211322.

223112100312 is a `hidden beast` number, since 2 + 231 + 121 + 0 + 0 + 312 = 666.

It is a super-3 number, since 3×223112100312³ (a number of 35 digits) contains 333 as substring.

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 (223112100311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14472573 + ... + 14487980.

Almost surely, 2^223112100312 is an apocalyptic number.

It is an amenable number.

223112100312 is an abundant number, since it is smaller than the sum of its proper divisors (386797166928).

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

223112100312 is a wasteful number, since it uses less digits than its factorization.

223112100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28960672 (or 28960665 counting only the distinct ones).

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

Adding to 223112100312 its reverse (213001211322), we get a palindrome (436113311634).

The spelling of 223112100312 in words is "two hundred twenty-three billion, one hundred twelve million, one hundred thousand, three hundred twelve".