231044220443401 has 32 divisors (see below), whose sum is σ = 237734193328128. Its totient is φ = 224485618855680.

The previous prime is 231044220443359. The next prime is 231044220443417. The reversal of 231044220443401 is 104344022440132.

It is a cyclic number.

It is not a de Polignac number, because 231044220443401 - 2⁷ = 231044220443273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231044220443471) 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 31 ways as a sum of consecutive naturals, for example, 696562671 + ... + 696894283.

It is an arithmetic number, because the mean of its divisors is an integer number (7429193541504).

Almost surely, 2^{231044220443401} is an apocalyptic number.

It is an amenable number.

231044220443401 is a deficient number, since it is larger than the sum of its proper divisors (6689972884727).

231044220443401 is a wasteful number, since it uses less digits than its factorization.

231044220443401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332401.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 231044220443401 its reverse (104344022440132), we get a palindrome (335388242883533).

The spelling of 231044220443401 in words is "two hundred thirty-one trillion, forty-four billion, two hundred twenty million, four hundred forty-three thousand, four hundred one".