231344411 has 4 divisors (see below), whose sum is σ = 231418824. Its totient is φ = 231270000.

The previous prime is 231344401. The next prime is 231344431. The reversal of 231344411 is 114443132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231344411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231344401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32330 + ... + 38831.

It is an arithmetic number, because the mean of its divisors is an integer number (57854706).

Almost surely, 2^231344411 is an apocalyptic number.

231344411 is a deficient number, since it is larger than the sum of its proper divisors (74413).

231344411 is an equidigital number, since it uses as much as digits as its factorization.

231344411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74412.

The product of its digits is 1152, while the sum is 23.

The square root of 231344411 is about 15210.0102235337. The cubic root of 231344411 is about 613.8840325711.

Adding to 231344411 its reverse (114443132), we get a palindrome (345787543).

The spelling of 231344411 in words is "two hundred thirty-one million, three hundred forty-four thousand, four hundred eleven".