30530210421 has 4 divisors (see below), whose sum is σ = 40706947232. Its totient is φ = 20353473612.

The previous prime is 30530210353. The next prime is 30530210429. The reversal of 30530210421 is 12401203503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30530210421 - 2⁹ = 30530209909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30530210429) 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, 5088368401 + ... + 5088368406.

It is an arithmetic number, because the mean of its divisors is an integer number (10176736808).

Almost surely, 2^30530210421 is an apocalyptic number.

It is an amenable number.

30530210421 is a deficient number, since it is larger than the sum of its proper divisors (10176736811).

30530210421 is a wasteful number, since it uses less digits than its factorization.

30530210421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10176736810.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 30530210421 its reverse (12401203503), we get a palindrome (42931413924).

The spelling of 30530210421 in words is "thirty billion, five hundred thirty million, two hundred ten thousand, four hundred twenty-one".