130231012 has 6 divisors (see below), whose sum is σ = 227904278. Its totient is φ = 65115504.

The previous prime is 130230983. The next prime is 130231019. The reversal of 130231012 is 210132031.

It can be written as a sum of positive squares in only one way, i.e., 105390756 + 24840256 = 10266^2 + 4984^2 .

It is a junction number, because it is equal to n+sod(n) for n = 130230983 and 130231001.

It is not an unprimeable number, because it can be changed into a prime (130231019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16278873 + ... + 16278880.

Almost surely, 2^130231012 is an apocalyptic number.

It is an amenable number.

130231012 is a deficient number, since it is larger than the sum of its proper divisors (97673266).

130231012 is a wasteful number, since it uses less digits than its factorization.

130231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32557757 (or 32557755 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 130231012 is about 11411.8803008093. The cubic root of 130231012 is about 506.8795909856.

Adding to 130231012 its reverse (210132031), we get a palindrome (340363043).

The spelling of 130231012 in words is "one hundred thirty million, two hundred thirty-one thousand, twelve".