304135441213 has 4 divisors (see below), whose sum is σ = 304325884540. Its totient is φ = 303944997888.

The previous prime is 304135441199. The next prime is 304135441217. The reversal of 304135441213 is 312144531403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312144531403 = 16057 ⋅19439779.

It can be written as a sum of positive squares in 2 ways, for example, as 50302864089 + 253832577124 = 224283^2 + 503818^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304135441213 is a prime.

It is a super-2 number, since 2×304135441213² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304135441217) 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, 95219268 + ... + 95222461.

It is an arithmetic number, because the mean of its divisors is an integer number (76081471135).

Almost surely, 2^304135441213 is an apocalyptic number.

It is an amenable number.

304135441213 is a deficient number, since it is larger than the sum of its proper divisors (190443327).

304135441213 is a wasteful number, since it uses less digits than its factorization.

304135441213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190443326.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 304135441213 its reverse (312144531403), we get a palindrome (616279972616).

The spelling of 304135441213 in words is "three hundred four billion, one hundred thirty-five million, four hundred forty-one thousand, two hundred thirteen".