30321130423543 has 2 divisors, whose sum is σ = 30321130423544. Its totient is φ = 30321130423542.

The previous prime is 30321130423541. The next prime is 30321130423553. The reversal of 30321130423543 is 34532403112303.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30321130423543 - 2¹ = 30321130423541 is a prime.

Together with 30321130423541, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 30321130423499 and 30321130423508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30321130423541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15160565211771 + 15160565211772.

It is an arithmetic number, because the mean of its divisors is an integer number (15160565211772).

Almost surely, 2^{30321130423543} is an apocalyptic number.

30321130423543 is a deficient number, since it is larger than the sum of its proper divisors (1).

30321130423543 is an equidigital number, since it uses as much as digits as its factorization.

30321130423543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 30321130423543 its reverse (34532403112303), we get a palindrome (64853533535846).

The spelling of 30321130423543 in words is "thirty trillion, three hundred twenty-one billion, one hundred thirty million, four hundred twenty-three thousand, five hundred forty-three".