20030203313 has 4 divisors (see below), whose sum is σ = 21084424560. Its totient is φ = 18975982068.

The previous prime is 20030203307. The next prime is 20030203327. The reversal of 20030203313 is 31330203002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20030203313 - 2³² = 15735236017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20030203291 and 20030203300.

It is not an unprimeable number, because it can be changed into a prime (20030203513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527110595 + ... + 527110632.

It is an arithmetic number, because the mean of its divisors is an integer number (5271106140).

Almost surely, 2^20030203313 is an apocalyptic number.

It is an amenable number.

20030203313 is a deficient number, since it is larger than the sum of its proper divisors (1054221247).

20030203313 is a wasteful number, since it uses less digits than its factorization.

20030203313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054221246.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 20030203313 its reverse (31330203002), we get a palindrome (51360406315).

The spelling of 20030203313 in words is "twenty billion, thirty million, two hundred three thousand, three hundred thirteen".