304130131240 has 64 divisors (see below), whose sum is σ = 780279590160. Its totient is φ = 105688657920.

The previous prime is 304130131231. The next prime is 304130131243. The reversal of 304130131240 is 42131031403.

It can be written as a sum of positive squares in 8 ways, for example, as 80720764996 + 223409366244 = 284114^2 + 472662^2 .

It is not an unprimeable number, because it can be changed into a prime (304130131243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17193091 + ... + 17210770.

Almost surely, 2^304130131240 is an apocalyptic number.

It is an amenable number.

304130131240 is an abundant number, since it is smaller than the sum of its proper divisors (476149458920).

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

304130131240 is a wasteful number, since it uses less digits than its factorization.

304130131240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34403902 (or 34403898 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 304130131240 its reverse (42131031403), we get a palindrome (346261162643).

The spelling of 304130131240 in words is "three hundred four billion, one hundred thirty million, one hundred thirty-one thousand, two hundred forty".