231101 has 8 divisors (see below), whose sum is σ = 257880. Its totient is φ = 205632.

The previous prime is 231079. The next prime is 231107. The reversal of 231101 is 101132.

It can be written as a sum of positive squares in 4 ways, for example, as 5476 + 225625 = 74^2 + 475^2 .

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 231101 - 2¹⁰ = 230077 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 (231107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71 + ... + 683.

It is an arithmetic number, because the mean of its divisors is an integer number (32235).

2²³¹¹⁰¹ is an apocalyptic number.

It is an amenable number.

231101 is a deficient number, since it is larger than the sum of its proper divisors (26779).

231101 is a wasteful number, since it uses less digits than its factorization.

231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 231101 is about 480.7296537556. The cubic root of 231101 is about 61.3668655905.

Adding to 231101 its reverse (101132), we get a palindrome (332233).

The spelling of 231101 in words is "two hundred thirty-one thousand, one hundred one".