231311312101 has 8 divisors (see below), whose sum is σ = 232997718240. Its totient is φ = 229625224752.

The previous prime is 231311312053. The next prime is 231311312119. The reversal of 231311312101 is 101213113132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231311312101 - 2²⁷ = 231177094373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231311312131) 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, 1488771 + ... + 1636783.

It is an arithmetic number, because the mean of its divisors is an integer number (29124714780).

Almost surely, 2^231311312101 is an apocalyptic number.

It is an amenable number.

231311312101 is a deficient number, since it is larger than the sum of its proper divisors (1686406139).

231311312101 is a wasteful number, since it uses less digits than its factorization.

231311312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159395.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 231311312101 its reverse (101213113132), we get a palindrome (332524425233).

The spelling of 231311312101 in words is "two hundred thirty-one billion, three hundred eleven million, three hundred twelve thousand, one hundred one".