30402420243 has 16 divisors (see below), whose sum is σ = 43681979040. Its totient is φ = 18697515264.

The previous prime is 30402420199. The next prime is 30402420253. The reversal of 30402420243 is 34202420403.

It is not a de Polignac number, because 30402420243 - 2⁸ = 30402419987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30402420253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179496 + ... + 304997.

It is an arithmetic number, because the mean of its divisors is an integer number (2730123690).

Almost surely, 2^30402420243 is an apocalyptic number.

30402420243 is a deficient number, since it is larger than the sum of its proper divisors (13279558797).

30402420243 is a wasteful number, since it uses less digits than its factorization.

30402420243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486118.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 30402420243 its reverse (34202420403), we get a palindrome (64604840646).

The spelling of 30402420243 in words is "thirty billion, four hundred two million, four hundred twenty thousand, two hundred forty-three".