304242553131 has 32 divisors (see below), whose sum is σ = 445911464448. Its totient is φ = 182983299840.

The previous prime is 304242553103. The next prime is 304242553133. The reversal of 304242553131 is 131355242403.

It is not a de Polignac number, because 304242553131 - 2⁵ = 304242553099 is a prime.

It is a super-2 number, since 2×304242553131² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 304242553092 and 304242553101.

It is not an unprimeable number, because it can be changed into a prime (304242553133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16433626 + ... + 16452128.

It is an arithmetic number, because the mean of its divisors is an integer number (13934733264).

Almost surely, 2^304242553131 is an apocalyptic number.

304242553131 is a deficient number, since it is larger than the sum of its proper divisors (141668911317).

304242553131 is a wasteful number, since it uses less digits than its factorization.

304242553131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22291.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 304242553131 its reverse (131355242403), we get a palindrome (435597795534).

The spelling of 304242553131 in words is "three hundred four billion, two hundred forty-two million, five hundred fifty-three thousand, one hundred thirty-one".