231344442211 has 12 divisors (see below), whose sum is σ = 245440783224. Its totient is φ = 217919038400.

The previous prime is 231344442209. The next prime is 231344442229. The reversal of 231344442211 is 112244443132.

It is a happy number.

It is not a de Polignac number, because 231344442211 - 2¹ = 231344442209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231344442311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3320185 + ... + 3389146.

It is an arithmetic number, because the mean of its divisors is an integer number (20453398602).

Almost surely, 2^231344442211 is an apocalyptic number.

231344442211 is a deficient number, since it is larger than the sum of its proper divisors (14096341013).

231344442211 is an equidigital number, since it uses as much as digits as its factorization.

231344442211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709430 (or 6709401 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

Adding to 231344442211 its reverse (112244443132), we get a palindrome (343588885343).

The spelling of 231344442211 in words is "two hundred thirty-one billion, three hundred forty-four million, four hundred forty-two thousand, two hundred eleven".