130431231 has 24 divisors (see below), whose sum is σ = 215654400. Its totient is φ = 74414736.

The previous prime is 130431199. The next prime is 130431271. The reversal of 130431231 is 132134031.

130431231 is a `hidden beast` number, since 1 + 3 + 0 + 431 + 231 = 666.

It is not a de Polignac number, because 130431231 - 2⁵ = 130431199 is a prime.

It is a super-2 number, since 2×130431231² = 34024612040350722, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130431271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53170 + ... + 55568.

It is an arithmetic number, because the mean of its divisors is an integer number (8985600).

Almost surely, 2^130431231 is an apocalyptic number.

130431231 is a deficient number, since it is larger than the sum of its proper divisors (85223169).

130431231 is a wasteful number, since it uses less digits than its factorization.

130431231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275 (or 3272 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 130431231 is about 11420.6493247976. The cubic root of 130431231 is about 507.1392192634.

Adding to 130431231 its reverse (132134031), we get a palindrome (262565262).

The spelling of 130431231 in words is "one hundred thirty million, four hundred thirty-one thousand, two hundred thirty-one".