231204012617 has 16 divisors (see below), whose sum is σ = 250750460160. Its totient is φ = 212477836032.

The previous prime is 231204012601. The next prime is 231204012643. The reversal of 231204012617 is 716210402132.

It is a cyclic number.

It is not a de Polignac number, because 231204012617 - 2⁴ = 231204012601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231204012617.

It is not an unprimeable number, because it can be changed into a prime (231204012817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044698 + ... + 1246515.

It is an arithmetic number, because the mean of its divisors is an integer number (15671903760).

Almost surely, 2^231204012617 is an apocalyptic number.

It is an amenable number.

231204012617 is a deficient number, since it is larger than the sum of its proper divisors (19546447543).

231204012617 is a wasteful number, since it uses less digits than its factorization.

231204012617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291392.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 231204012617 its reverse (716210402132), we get a palindrome (947414414749).

The spelling of 231204012617 in words is "two hundred thirty-one billion, two hundred four million, twelve thousand, six hundred seventeen".