130120244 has 12 divisors (see below), whose sum is σ = 241105284. Its totient is φ = 61233024.

The previous prime is 130120241. The next prime is 130120283. The reversal of 130120244 is 442021031.

It can be written as a sum of positive squares in 2 ways, for example, as 38688400 + 91431844 = 6220^2 + 9562^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130120241) 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, 956699 + ... + 956834.

It is an arithmetic number, because the mean of its divisors is an integer number (20092107).

Almost surely, 2^130120244 is an apocalyptic number.

It is an amenable number.

130120244 is a deficient number, since it is larger than the sum of its proper divisors (110985040).

130120244 is a wasteful number, since it uses less digits than its factorization.

130120244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913554 (or 1913552 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 130120244 is about 11407.0260804471. The cubic root of 130120244 is about 506.7358413939.

Adding to 130120244 its reverse (442021031), we get a palindrome (572141275).

The spelling of 130120244 in words is "one hundred thirty million, one hundred twenty thousand, two hundred forty-four".