130312044 has 48 divisors (see below), whose sum is σ = 338486400. Its totient is φ = 43355088.

The previous prime is 130312037. The next prime is 130312067. The reversal of 130312044 is 440213031.

It is a super-2 number, since 2×130312044² = 33962457622915872, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88587 + ... + 90045.

It is an arithmetic number, because the mean of its divisors is an integer number (7051800).

Almost surely, 2^130312044 is an apocalyptic number.

It is an amenable number.

130312044 is an abundant number, since it is smaller than the sum of its proper divisors (208174356).

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

130312044 is a wasteful number, since it uses less digits than its factorization.

130312044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299 (or 2291 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130312044 is about 11415.4300838821. The cubic root of 130312044 is about 506.9846989535.

Adding to 130312044 its reverse (440213031), we get a palindrome (570525075).

The spelling of 130312044 in words is "one hundred thirty million, three hundred twelve thousand, forty-four".