213830303605 has 8 divisors (see below), whose sum is σ = 265444515000. Its totient is φ = 165165475776.

The previous prime is 213830303587. The next prime is 213830303639. The reversal of 213830303605 is 506303038312.

It can be written as a sum of positive squares in 4 ways, for example, as 67678542801 + 146151760804 = 260151^2 + 382298^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213830303605 - 2¹¹ = 213830301557 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 737345730 + ... + 737346019.

It is an arithmetic number, because the mean of its divisors is an integer number (33180564375).

Almost surely, 2^213830303605 is an apocalyptic number.

It is an amenable number.

213830303605 is a deficient number, since it is larger than the sum of its proper divisors (51614211395).

213830303605 is a wasteful number, since it uses less digits than its factorization.

213830303605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474691783.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 213830303605 in words is "two hundred thirteen billion, eight hundred thirty million, three hundred three thousand, six hundred five".