30340220242543 has 4 divisors (see below), whose sum is σ = 30618570887080. Its totient is φ = 30061869598008.

The previous prime is 30340220242477. The next prime is 30340220242571. The reversal of 30340220242543 is 34524202204303.

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 30340220242543 - 2¹³ = 30340220234351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30340220242499 and 30340220242508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30340220842543) 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, 139175322105 + ... + 139175322322.

It is an arithmetic number, because the mean of its divisors is an integer number (7654642721770).

Almost surely, 2^{30340220242543} is an apocalyptic number.

30340220242543 is a deficient number, since it is larger than the sum of its proper divisors (278350644537).

30340220242543 is a wasteful number, since it uses less digits than its factorization.

30340220242543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278350644536.

The product of its (nonzero) digits is 138240, while the sum is 34.

Adding to 30340220242543 its reverse (34524202204303), we get a palindrome (64864422446846).

The spelling of 30340220242543 in words is "thirty trillion, three hundred forty billion, two hundred twenty million, two hundred forty-two thousand, five hundred forty-three".