30530420405 has 4 divisors (see below), whose sum is σ = 36636504492. Its totient is φ = 24424336320.

The previous prime is 30530420381. The next prime is 30530420413. The reversal of 30530420405 is 50402403503.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3490564561 + 27039855844 = 59081^2 + 164438^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30530420405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053042036 + ... + 3053042045.

It is an arithmetic number, because the mean of its divisors is an integer number (9159126123).

Almost surely, 2^30530420405 is an apocalyptic number.

It is an amenable number.

30530420405 is a deficient number, since it is larger than the sum of its proper divisors (6106084087).

30530420405 is an equidigital number, since it uses as much as digits as its factorization.

30530420405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106084086.

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 30530420405 its reverse (50402403503), we get a palindrome (80932823908).

The spelling of 30530420405 in words is "thirty billion, five hundred thirty million, four hundred twenty thousand, four hundred five".