202235420213 has 4 divisors (see below), whose sum is σ = 214131621420. Its totient is φ = 190339219008.

The previous prime is 202235420209. The next prime is 202235420311. The reversal of 202235420213 is 312024532202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 142429250404 + 59806169809 = 377398^2 + 244553^2 .

It is a cyclic number.

It is not a de Polignac number, because 202235420213 - 2² = 202235420209 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 (202235425213) 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, 5948100578 + ... + 5948100611.

It is an arithmetic number, because the mean of its divisors is an integer number (53532905355).

Almost surely, 2^202235420213 is an apocalyptic number.

It is an amenable number.

202235420213 is a deficient number, since it is larger than the sum of its proper divisors (11896201207).

202235420213 is a wasteful number, since it uses less digits than its factorization.

202235420213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11896201206.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 202235420213 its reverse (312024532202), we get a palindrome (514259952415).

The spelling of 202235420213 in words is "two hundred two billion, two hundred thirty-five million, four hundred twenty thousand, two hundred thirteen".