30420444125 has 16 divisors (see below), whose sum is σ = 38422133568. Its totient is φ = 24043138000.

The previous prime is 30420444097. The next prime is 30420444143. The reversal of 30420444125 is 52144402403.

It is not a de Polignac number, because 30420444125 - 2²⁰ = 30419395549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455671 + ... + 1476420.

It is an arithmetic number, because the mean of its divisors is an integer number (2401383348).

Almost surely, 2^30420444125 is an apocalyptic number.

It is an amenable number.

30420444125 is a deficient number, since it is larger than the sum of its proper divisors (8001689443).

30420444125 is an equidigital number, since it uses as much as digits as its factorization.

30420444125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932189 (or 2932179 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 30420444125 its reverse (52144402403), we get a palindrome (82564846528).

The spelling of 30420444125 in words is "thirty billion, four hundred twenty million, four hundred forty-four thousand, one hundred twenty-five".