231205034 has 16 divisors (see below), whose sum is σ = 369686400. Its totient is φ = 108130464.

The previous prime is 231205033. The next prime is 231205043. The reversal of 231205034 is 430502132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231204997 and 231205015.

It is not an unprimeable number, because it can be changed into a prime (231205033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35507 + ... + 41510.

It is an arithmetic number, because the mean of its divisors is an integer number (23105400).

Almost surely, 2^231205034 is an apocalyptic number.

231205034 is a deficient number, since it is larger than the sum of its proper divisors (138481366).

231205034 is a wasteful number, since it uses less digits than its factorization.

231205034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77117.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 231205034 is about 15205.4277808946. The cubic root of 231205034 is about 613.7607265116.

Adding to 231205034 its reverse (430502132), we get a palindrome (661707166).

The spelling of 231205034 in words is "two hundred thirty-one million, two hundred five thousand, thirty-four".