101231 has 6 divisors (see below), whose sum is σ = 109800. Its totient is φ = 93288.

The previous prime is 101221. The next prime is 101267. The reversal of 101231 is 132101.

It is not a de Polignac number, because 101231 - 2¹⁰ = 100207 is a prime.

It is a super-2 number, since 2×101231² = 20495430722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221) 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 5 ways as a sum of consecutive naturals, for example, 131 + ... + 468.

It is an arithmetic number, because the mean of its divisors is an integer number (18300).

2¹⁰¹²³¹ is an apocalyptic number.

101231 is a deficient number, since it is larger than the sum of its proper divisors (8569).

101231 is an equidigital number, since it uses as much as digits as its factorization.

101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 612 counting only the distinct ones).

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

The square root of 101231 is about 318.1681945135. The cubic root of 101231 is about 46.6055719789.

Adding to 101231 its reverse (132101), we get a palindrome (233332).

The spelling of 101231 in words is "one hundred one thousand, two hundred thirty-one".