231234211 has 4 divisors (see below), whose sum is σ = 249021472. Its totient is φ = 213446952.

The previous prime is 231234209. The next prime is 231234229. The reversal of 231234211 is 112432132.

It is a happy number.

231234211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231234211 - 2¹ = 231234209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231234251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8893611 + ... + 8893636.

It is an arithmetic number, because the mean of its divisors is an integer number (62255368).

Almost surely, 2^231234211 is an apocalyptic number.

231234211 is a deficient number, since it is larger than the sum of its proper divisors (17787261).

231234211 is a wasteful number, since it uses less digits than its factorization.

231234211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17787260.

The product of its digits is 288, while the sum is 19.

The square root of 231234211 is about 15206.3871777618. The cubic root of 231234211 is about 613.7865433420.

Adding to 231234211 its reverse (112432132), we get a palindrome (343666343).

The spelling of 231234211 in words is "two hundred thirty-one million, two hundred thirty-four thousand, two hundred eleven".