231320110044 has 12 divisors (see below), whose sum is σ = 539746923464. Its totient is φ = 77106703344.

The previous prime is 231320110013. The next prime is 231320110057. The reversal of 231320110044 is 440011023132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 231320110044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9638337907 + ... + 9638337930.

Almost surely, 2^231320110044 is an apocalyptic number.

It is an amenable number.

231320110044 is an abundant number, since it is smaller than the sum of its proper divisors (308426813420).

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

231320110044 is a wasteful number, since it uses less digits than its factorization.

231320110044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19276675844 (or 19276675842 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 231320110044 its reverse (440011023132), we get a palindrome (671331133176).

The spelling of 231320110044 in words is "two hundred thirty-one billion, three hundred twenty million, one hundred ten thousand, forty-four".