30505434015203 has 16 divisors (see below), whose sum is σ = 35164165360896. Its totient is φ = 25922299809120.

The previous prime is 30505434015197. The next prime is 30505434015229. The reversal of 30505434015203 is 30251043450503.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30505434015203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30505434015283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15490901 + ... + 17348742.

It is an arithmetic number, because the mean of its divisors is an integer number (2197760335056).

Almost surely, 2^{30505434015203} is an apocalyptic number.

30505434015203 is a deficient number, since it is larger than the sum of its proper divisors (4658731345693).

30505434015203 is a wasteful number, since it uses less digits than its factorization.

30505434015203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32840794.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 30505434015203 its reverse (30251043450503), we get a palindrome (60756477465706).

The spelling of 30505434015203 in words is "thirty trillion, five hundred five billion, four hundred thirty-four million, fifteen thousand, two hundred three".