304231404431 has 4 divisors (see below), whose sum is σ = 304234429752. Its totient is φ = 304228379112.

The previous prime is 304231404427. The next prime is 304231404557. The reversal of 304231404431 is 134404132403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 304231404431 - 2² = 304231404427 is a prime.

It is a super-2 number, since 2×304231404431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304231404394 and 304231404403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304231404731) 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, 1356440 + ... + 1564733.

It is an arithmetic number, because the mean of its divisors is an integer number (76058607438).

Almost surely, 2^304231404431 is an apocalyptic number.

304231404431 is a deficient number, since it is larger than the sum of its proper divisors (3025321).

304231404431 is a wasteful number, since it uses less digits than its factorization.

304231404431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025320.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 304231404431 its reverse (134404132403), we get a palindrome (438635536834).

The spelling of 304231404431 in words is "three hundred four billion, two hundred thirty-one million, four hundred four thousand, four hundred thirty-one".