231201223242 has 32 divisors (see below), whose sum is σ = 511967983104. Its totient is φ = 69015289200.

The previous prime is 231201223241. The next prime is 231201223283. The reversal of 231201223242 is 242322102132.

231201223242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231201223241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26137734 + ... + 26146577.

It is an arithmetic number, because the mean of its divisors is an integer number (15998999472).

Almost surely, 2^231201223242 is an apocalyptic number.

231201223242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231201223242 is an abundant number, since it is smaller than the sum of its proper divisors (280766759862).

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

231201223242 is a wasteful number, since it uses less digits than its factorization.

231201223242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52284394.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 231201223242 its reverse (242322102132), we get a palindrome (473523325374).

The spelling of 231201223242 in words is "two hundred thirty-one billion, two hundred one million, two hundred twenty-three thousand, two hundred forty-two".