20030313213 has 6 divisors (see below), whose sum is σ = 28932674654. Its totient is φ = 13353542136.

The previous prime is 20030313187. The next prime is 20030313227. The reversal of 20030313213 is 31231303002.

It can be written as a sum of positive squares in only one way, i.e., 10655813529 + 9374499684 = 103227^2 + 96822^2 .

It is not a de Polignac number, because 20030313213 - 2¹⁰ = 20030312189 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 (20030313113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1112795170 + ... + 1112795187.

Almost surely, 2^20030313213 is an apocalyptic number.

It is an amenable number.

20030313213 is a deficient number, since it is larger than the sum of its proper divisors (8902361441).

20030313213 is a wasteful number, since it uses less digits than its factorization.

20030313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225590363 (or 2225590360 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20030313213 its reverse (31231303002), we get a palindrome (51261616215).

The spelling of 20030313213 in words is "twenty billion, thirty million, three hundred thirteen thousand, two hundred thirteen".