201223231312240 has 20 divisors (see below), whose sum is σ = 467844012801144. Its totient is φ = 80489292524864.

The previous prime is 201223231312237. The next prime is 201223231312241. The reversal of 201223231312240 is 42213132322102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 201223231312199 and 201223231312208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201223231312241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1257645195622 + ... + 1257645195781.

Almost surely, 2^{201223231312240} is an apocalyptic number.

201223231312240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201223231312240 is an abundant number, since it is smaller than the sum of its proper divisors (266620781488904).

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

201223231312240 is a wasteful number, since it uses less digits than its factorization.

201223231312240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515290391416 (or 2515290391410 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 201223231312240 its reverse (42213132322102), we get a palindrome (243436363634342).

The spelling of 201223231312240 in words is "two hundred one trillion, two hundred twenty-three billion, two hundred thirty-one million, three hundred twelve thousand, two hundred forty".