223231230322120 has 32 divisors (see below), whose sum is σ = 502301218620600. Its totient is φ = 89286989836288.

The previous prime is 223231230322099. The next prime is 223231230322129. The reversal of 223231230322120 is 21223032132322.

It can be written as a sum of positive squares in 4 ways, for example, as 184034890874916 + 39196339447204 = 13565946^2 + 6260698^2 .

It is a super-3 number, since 3×223231230322120³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (223231230322129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171289369 + ... + 172587688.

Almost surely, 2^{223231230322120} is an apocalyptic number.

223231230322120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223231230322120 is an abundant number, since it is smaller than the sum of its proper divisors (279069988298480).

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

223231230322120 is a wasteful number, since it uses less digits than its factorization.

223231230322120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343893297 (or 343893293 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 223231230322120 its reverse (21223032132322), we get a palindrome (244454262454442).

The spelling of 223231230322120 in words is "two hundred twenty-three trillion, two hundred thirty-one billion, two hundred thirty million, three hundred twenty-two thousand, one hundred twenty".