203201312213 has 8 divisors (see below), whose sum is σ = 205011399768. Its totient is φ = 201391432704.

The previous prime is 203201312177. The next prime is 203201312243. The reversal of 203201312213 is 312213102302.

It can be written as a sum of positive squares in 4 ways, for example, as 16666293604 + 186535018609 = 129098^2 + 431897^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203201312213 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 (203201312243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2437895 + ... + 2519867.

It is an arithmetic number, because the mean of its divisors is an integer number (25626424971).

Almost surely, 2^203201312213 is an apocalyptic number.

It is an amenable number.

203201312213 is a deficient number, since it is larger than the sum of its proper divisors (1810087555).

203201312213 is a wasteful number, since it uses less digits than its factorization.

203201312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104023.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203201312213 its reverse (312213102302), we get a palindrome (515414414515).

The spelling of 203201312213 in words is "two hundred three billion, two hundred one million, three hundred twelve thousand, two hundred thirteen".