223243031412 has 18 divisors (see below), whose sum is σ = 564308773938. Its totient is φ = 74414343792.

The previous prime is 223243031393. The next prime is 223243031419. The reversal of 223243031412 is 214130342322.

223243031412 is a `hidden beast` number, since 2 + 2 + 3 + 243 + 0 + 3 + 1 + 412 = 666.

It can be written as a sum of positive squares in only one way, i.e., 137630612196 + 85612419216 = 370986^2 + 292596^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×223243031412³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223243031419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3100597623 + ... + 3100597694.

It is an arithmetic number, because the mean of its divisors is an integer number (31350487441).

Almost surely, 2^223243031412 is an apocalyptic number.

It is an amenable number.

223243031412 is an abundant number, since it is smaller than the sum of its proper divisors (341065742526).

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

223243031412 is a wasteful number, since it uses less digits than its factorization.

223243031412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201195327 (or 6201195322 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 223243031412 its reverse (214130342322), we get a palindrome (437373373734).

The spelling of 223243031412 in words is "two hundred twenty-three billion, two hundred forty-three million, thirty-one thousand, four hundred twelve".