130121316 has 60 divisors (see below), whose sum is σ = 366341052. Its totient is φ = 40036032.

The previous prime is 130121297. The next prime is 130121317. The reversal of 130121316 is 613121031.

It can be written as a sum of positive squares in 2 ways, for example, as 33177600 + 96943716 = 5760^2 + 9846^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (130121317) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11235 + ... + 19658.

Almost surely, 2^130121316 is an apocalyptic number.

It is an amenable number.

130121316 is an abundant number, since it is smaller than the sum of its proper divisors (236219736).

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

130121316 is a wasteful number, since it uses less digits than its factorization.

130121316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30922 (or 30911 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 130121316 is about 11407.0730689340. The cubic root of 130121316 is about 506.7372329769.

Adding to 130121316 its reverse (613121031), we get a palindrome (743242347).

The spelling of 130121316 in words is "one hundred thirty million, one hundred twenty-one thousand, three hundred sixteen".