1243214300205 has 48 divisors (see below), whose sum is σ = 2207636121600. Its totient is φ = 646825132800.

The previous prime is 1243214300189. The next prime is 1243214300227. The reversal of 1243214300205 is 5020034123421.

1243214300205 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 21 + 430 + 0 + 205 = 666.

It is not a de Polignac number, because 1243214300205 - 2⁴ = 1243214300189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40203700 + ... + 40234610.

It is an arithmetic number, because the mean of its divisors is an integer number (45992419200).

Almost surely, 2^{1243214300205} is an apocalyptic number.

1243214300205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1243214300205 is a deficient number, since it is larger than the sum of its proper divisors (964421821395).

1243214300205 is a wasteful number, since it uses less digits than its factorization.

1243214300205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52762 (or 52759 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1243214300205 its reverse (5020034123421), we get a palindrome (6263248423626).

The spelling of 1243214300205 in words is "one trillion, two hundred forty-three billion, two hundred fourteen million, three hundred thousand, two hundred five".