102231 has 12 divisors (see below), whose sum is σ = 152152. Its totient is φ = 66096.

The previous prime is 102229. The next prime is 102233. The reversal of 102231 is 132201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102229) and next prime (102233).

It is not a de Polignac number, because 102231 - 2¹ = 102229 is a prime.

It is a super-2 number, since 2×102231² = 20902354722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

102231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102233) 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 11 ways as a sum of consecutive naturals, for example, 180 + ... + 486.

2¹⁰²²³¹ is an apocalyptic number.

102231 is a deficient number, since it is larger than the sum of its proper divisors (49921).

102231 is a wasteful number, since it uses less digits than its factorization.

102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 102231 is about 319.7358284584. The cubic root of 102231 is about 46.7585321917.

Adding to 102231 its reverse (132201), we get a palindrome (234432).

It can be divided in two parts, 102 and 231, that added together give a palindrome (333).

The spelling of 102231 in words is "one hundred two thousand, two hundred thirty-one".