30234820505 has 4 divisors (see below), whose sum is σ = 36281784612. Its totient is φ = 24187856400.

The previous prime is 30234820487. The next prime is 30234820519. The reversal of 30234820505 is 50502843203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50502843203 = 86249 ⋅585547.

It can be written as a sum of positive squares in 2 ways, for example, as 17131668544 + 13103151961 = 130888^2 + 114469^2 .

It is not a de Polignac number, because 30234820505 - 2¹⁶ = 30234754969 is a prime.

It is a Duffinian 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, 3023482046 + ... + 3023482055.

It is an arithmetic number, because the mean of its divisors is an integer number (9070446153).

Almost surely, 2^30234820505 is an apocalyptic number.

It is an amenable number.

30234820505 is a deficient number, since it is larger than the sum of its proper divisors (6046964107).

30234820505 is an equidigital number, since it uses as much as digits as its factorization.

30234820505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6046964106.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 30234820505 in words is "thirty billion, two hundred thirty-four million, eight hundred twenty thousand, five hundred five".