213053316642 has 48 divisors (see below), whose sum is σ = 480094325568. Its totient is φ = 68229030240.

The previous prime is 213053316589. The next prime is 213053316643. The reversal of 213053316642 is 246613350312.

213053316642 is a `hidden beast` number, since 2 + 1 + 3 + 0 + 5 + 3 + 3 + 1 + 6 + 642 = 666.

213053316642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213053316597 and 213053316606.

It is not an unprimeable number, because it can be changed into a prime (213053316643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2209038 + ... + 2303465.

It is an arithmetic number, because the mean of its divisors is an integer number (10001965116).

Almost surely, 2^213053316642 is an apocalyptic number.

213053316642 is an abundant number, since it is smaller than the sum of its proper divisors (267041008926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213053316642 is a wasteful number, since it uses less digits than its factorization.

213053316642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512615 (or 4512612 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 213053316642 its reverse (246613350312), we get a palindrome (459666666954).

The spelling of 213053316642 in words is "two hundred thirteen billion, fifty-three million, three hundred sixteen thousand, six hundred forty-two".