231301122230442 has 32 divisors (see below), whose sum is σ = 504660159581184. Its totient is φ = 70090809490800.

The previous prime is 231301122230407. The next prime is 231301122230447. The reversal of 231301122230442 is 244032221103132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231301122230447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312448 + ... + 21510459.

It is an arithmetic number, because the mean of its divisors is an integer number (15770629986912).

Almost surely, 2^{231301122230442} is an apocalyptic number.

231301122230442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231301122230442 is an abundant number, since it is smaller than the sum of its proper divisors (273359037350742).

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

231301122230442 is a wasteful number, since it uses less digits than its factorization.

231301122230442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21983514.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 231301122230442 its reverse (244032221103132), we get a palindrome (475333343333574).

The spelling of 231301122230442 in words is "two hundred thirty-one trillion, three hundred one billion, one hundred twenty-two million, two hundred thirty thousand, four hundred forty-two".