30304434431 has 6 divisors (see below), whose sum is σ = 31313532096. Its totient is φ = 29326871100.

The previous prime is 30304434401. The next prime is 30304434451. The reversal of 30304434431 is 13443440303.

It is not a de Polignac number, because 30304434431 - 2⁶ = 30304434367 is a prime.

It is a super-2 number, since 2×30304434431² (a number of 22 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 = 30304434394 and 30304434403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30304434401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15766175 + ... + 15768096.

It is an arithmetic number, because the mean of its divisors is an integer number (5218922016).

Almost surely, 2^30304434431 is an apocalyptic number.

30304434431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30304434431 is a deficient number, since it is larger than the sum of its proper divisors (1009097665).

30304434431 is an equidigital number, since it uses as much as digits as its factorization.

30304434431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31534333 (or 31534302 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 30304434431 its reverse (13443440303), we get a palindrome (43747874734).

The spelling of 30304434431 in words is "thirty billion, three hundred four million, four hundred thirty-four thousand, four hundred thirty-one".