30312012012203 has 4 divisors (see below), whose sum is σ = 30360981337560. Its totient is φ = 30263042686848.

The previous prime is 30312012012179. The next prime is 30312012012209. The reversal of 30312012012203 is 30221021021303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30312012012203 - 2³² = 30307717044907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30312012012209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24484661750 + ... + 24484662987.

It is an arithmetic number, because the mean of its divisors is an integer number (7590245334390).

Almost surely, 2^{30312012012203} is an apocalyptic number.

30312012012203 is a deficient number, since it is larger than the sum of its proper divisors (48969325357).

30312012012203 is an equidigital number, since it uses as much as digits as its factorization.

30312012012203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48969325356.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30312012012203 its reverse (30221021021303), we get a palindrome (60533033033506).

The spelling of 30312012012203 in words is "thirty trillion, three hundred twelve billion, twelve million, twelve thousand, two hundred three".