131230 has 16 divisors (see below), whose sum is σ = 257904. Its totient is φ = 47680.

The previous prime is 131221. The next prime is 131231. The reversal of 131230 is 32131.

131230 = 160² + 161² + ... + 164².

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131231) 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, 487 + ... + 706.

It is an arithmetic number, because the mean of its divisors is an integer number (16119).

2¹³¹²³⁰ is an apocalyptic number.

131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131230 is a deficient number, since it is larger than the sum of its proper divisors (126674).

131230 is a wasteful number, since it uses less digits than its factorization.

131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 131230 is about 362.2568149808. The cubic root of 131230 is about 50.8172363855.

Adding to 131230 its reverse (32131), we get a palindrome (163361).

Subtracting from 131230 its reverse (32131), we obtain a palindrome (99099).

It can be divided in two parts, 131 and 230, that added together give a square (361 = 19²).

The spelling of 131230 in words is "one hundred thirty-one thousand, two hundred thirty".