20030313 has 16 divisors (see below), whose sum is σ = 28344320. Its totient is φ = 12546576.

The previous prime is 20030299. The next prime is 20030327. The reversal of 20030313 is 31303002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20030299) and next prime (20030327).

It is not a de Polignac number, because 20030313 - 2⁸ = 20030057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20030333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5856 + ... + 8622.

It is an arithmetic number, because the mean of its divisors is an integer number (1771520).

Almost surely, 2^20030313 is an apocalyptic number.

It is an amenable number.

20030313 is a deficient number, since it is larger than the sum of its proper divisors (8314007).

20030313 is a wasteful number, since it uses less digits than its factorization.

20030313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 20030313 is about 4475.5237682309. The cubic root of 20030313 is about 271.5788293359.

Adding to 20030313 its reverse (31303002), we get a palindrome (51333315).

The spelling of 20030313 in words is "twenty million, thirty thousand, three hundred thirteen".