231312313101 has 16 divisors (see below), whose sum is σ = 326569320000. Its totient is φ = 145132355328.

The previous prime is 231312313087. The next prime is 231312313129. The reversal of 231312313101 is 101313213132.

It is a happy number.

It is not a de Polignac number, because 231312313101 - 2¹⁵ = 231312280333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231312313171) 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, 2106250 + ... + 2213348.

It is an arithmetic number, because the mean of its divisors is an integer number (20410582500).

Almost surely, 2^231312313101 is an apocalyptic number.

It is an amenable number.

231312313101 is a deficient number, since it is larger than the sum of its proper divisors (95257006899).

231312313101 is a wasteful number, since it uses less digits than its factorization.

231312313101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149468.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 231312313101 its reverse (101313213132), we get a palindrome (332625526233).

The spelling of 231312313101 in words is "two hundred thirty-one billion, three hundred twelve million, three hundred thirteen thousand, one hundred one".