130020312 has 32 divisors (see below), whose sum is σ = 329633280. Its totient is φ = 42729120.

The previous prime is 130020281. The next prime is 130020313. The reversal of 130020312 is 213020031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130020313) 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, 36448 + ... + 39855.

It is an arithmetic number, because the mean of its divisors is an integer number (10301040).

Almost surely, 2^130020312 is an apocalyptic number.

130020312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130020312 is an abundant number, since it is smaller than the sum of its proper divisors (199612968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130020312 is a wasteful number, since it uses less digits than its factorization.

130020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76383 (or 76379 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 130020312 is about 11402.6449563248. The cubic root of 130020312 is about 506.6060842461.

Adding to 130020312 its reverse (213020031), we get a palindrome (343040343).

It can be divided in two parts, 1300 and 20312, that added together give a palindrome (21612).

The spelling of 130020312 in words is "one hundred thirty million, twenty thousand, three hundred twelve".