213305353061 has 4 divisors (see below), whose sum is σ = 213363652800. Its totient is φ = 213247053324.

The previous prime is 213305353031. The next prime is 213305353069. The reversal of 213305353061 is 160353503312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213305353061 - 2³⁴ = 196125483877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213305353069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29144381 + ... + 29151698.

It is an arithmetic number, because the mean of its divisors is an integer number (53340913200).

Almost surely, 2^213305353061 is an apocalyptic number.

It is an amenable number.

213305353061 is a deficient number, since it is larger than the sum of its proper divisors (58299739).

213305353061 is an equidigital number, since it uses as much as digits as its factorization.

213305353061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58299738.

The product of its (nonzero) digits is 24300, while the sum is 32.

Adding to 213305353061 its reverse (160353503312), we get a palindrome (373658856373).

The spelling of 213305353061 in words is "two hundred thirteen billion, three hundred five million, three hundred fifty-three thousand, sixty-one".