130031312 has 20 divisors (see below), whose sum is σ = 257796000. Its totient is φ = 63503328.

The previous prime is 130031311. The next prime is 130031327. The reversal of 130031312 is 213130031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130031311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93812 + ... + 95187.

It is an arithmetic number, because the mean of its divisors is an integer number (12889800).

Almost surely, 2^130031312 is an apocalyptic number.

It is an amenable number.

130031312 is a deficient number, since it is larger than the sum of its proper divisors (127764688).

130031312 is a wasteful number, since it uses less digits than its factorization.

130031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189050 (or 189044 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 130031312 is about 11403.1272903533. The cubic root of 130031312 is about 506.6203705005.

Adding to 130031312 its reverse (213130031), we get a palindrome (343161343).

The spelling of 130031312 in words is "one hundred thirty million, thirty-one thousand, three hundred twelve".