203100030221213 has 4 divisors (see below), whose sum is σ = 203100060207420. Its totient is φ = 203100000235008.

The previous prime is 203100030221191. The next prime is 203100030221299. The reversal of 203100030221213 is 312122030001302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 95013795240004 + 108086234981209 = 9747502^2 + 10396453^2 .

It is a cyclic number.

It is not a de Polignac number, because 203100030221213 - 2²⁸ = 203099761785757 is a prime.

It is a super-3 number, since 3×203100030221213³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203100030721213) 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, 510173 + ... + 20160861.

It is an arithmetic number, because the mean of its divisors is an integer number (50775015051855).

Almost surely, 2^{203100030221213} is an apocalyptic number.

It is an amenable number.

203100030221213 is a deficient number, since it is larger than the sum of its proper divisors (29986207).

203100030221213 is a wasteful number, since it uses less digits than its factorization.

203100030221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29986206.

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

Adding to 203100030221213 its reverse (312122030001302), we get a palindrome (515222060222515).

The spelling of 203100030221213 in words is "two hundred three trillion, one hundred billion, thirty million, two hundred twenty-one thousand, two hundred thirteen".