231013510205 has 16 divisors (see below), whose sum is σ = 278107530624. Its totient is φ = 184217436480.

The previous prime is 231013510093. The next prime is 231013510279. The reversal of 231013510205 is 502015310132.

It is a happy number.

It is not a de Polignac number, because 231013510205 - 2²⁰ = 231012461629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2177114 + ... + 2280756.

It is an arithmetic number, because the mean of its divisors is an integer number (17381720664).

Almost surely, 2^231013510205 is an apocalyptic number.

It is an amenable number.

231013510205 is a deficient number, since it is larger than the sum of its proper divisors (47094020419).

231013510205 is a wasteful number, since it uses less digits than its factorization.

231013510205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105076.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 231013510205 its reverse (502015310132), we get a palindrome (733028820337).

The spelling of 231013510205 in words is "two hundred thirty-one billion, thirteen million, five hundred ten thousand, two hundred five".