231443110440121 has 16 divisors (see below), whose sum is σ = 240565711454208. Its totient is φ = 222426576277200.

The previous prime is 231443110440103. The next prime is 231443110440173. The reversal of 231443110440121 is 121044011344132.

231443110440121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231443110440121 - 2¹⁷ = 231443110309049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231443119440121) 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, 15525085 + ... + 26531386.

It is an arithmetic number, because the mean of its divisors is an integer number (15035356965888).

Almost surely, 2^{231443110440121} is an apocalyptic number.

It is an amenable number.

231443110440121 is a deficient number, since it is larger than the sum of its proper divisors (9122601014087).

231443110440121 is a wasteful number, since it uses less digits than its factorization.

231443110440121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42057732.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 231443110440121 its reverse (121044011344132), we get a palindrome (352487121784253).

The spelling of 231443110440121 in words is "two hundred thirty-one trillion, four hundred forty-three billion, one hundred ten million, four hundred forty thousand, one hundred twenty-one".