131230233 has 32 divisors (see below), whose sum is σ = 198979200. Its totient is φ = 85459968.

The previous prime is 131230201. The next prime is 131230241. The reversal of 131230233 is 332032131.

It is not a de Polignac number, because 131230233 - 2⁵ = 131230201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131230733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232810 + ... + 233372.

It is an arithmetic number, because the mean of its divisors is an integer number (6218100).

Almost surely, 2^131230233 is an apocalyptic number.

It is an amenable number.

131230233 is a deficient number, since it is larger than the sum of its proper divisors (67748967).

131230233 is an equidigital number, since it uses as much as digits as its factorization.

131230233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 131230233 is about 11455.5765022979. The cubic root of 131230233 is about 508.1726646100.

Adding to 131230233 its reverse (332032131), we get a palindrome (463262364).

The spelling of 131230233 in words is "one hundred thirty-one million, two hundred thirty thousand, two hundred thirty-three".