231414231 has 4 divisors (see below), whose sum is σ = 308552312. Its totient is φ = 154276152.

The previous prime is 231414223. The next prime is 231414233. The reversal of 231414231 is 132414132.

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

It is not a de Polignac number, because 231414231 - 2³ = 231414223 is a prime.

It is a super-2 number, since 2×231414231² = 107105092618642722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231414198 and 231414207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231414233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38569036 + ... + 38569041.

It is an arithmetic number, because the mean of its divisors is an integer number (77138078).

Almost surely, 2^231414231 is an apocalyptic number.

231414231 is a deficient number, since it is larger than the sum of its proper divisors (77138081).

231414231 is an equidigital number, since it uses as much as digits as its factorization.

231414231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77138080.

The product of its digits is 576, while the sum is 21.

The square root of 231414231 is about 15212.3052493697. The cubic root of 231414231 is about 613.9457833202.

Adding to 231414231 its reverse (132414132), we get a palindrome (363828363).

Subtracting from 231414231 its reverse (132414132), we obtain a palindrome (99000099).

It can be divided in two parts, 23141 and 4231, that added together give a palindrome (27372).

The spelling of 231414231 in words is "two hundred thirty-one million, four hundred fourteen thousand, two hundred thirty-one".