20403310213 has 16 divisors (see below), whose sum is σ = 23978102400. Its totient is φ = 17116102080.

The previous prime is 20403310183. The next prime is 20403310217. The reversal of 20403310213 is 31201330402.

It is a de Polignac number, because none of the positive numbers 2^k-20403310213 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 (20403310217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453123 + ... + 496111.

It is an arithmetic number, because the mean of its divisors is an integer number (1498631400).

Almost surely, 2^20403310213 is an apocalyptic number.

It is an amenable number.

20403310213 is a deficient number, since it is larger than the sum of its proper divisors (3574792187).

20403310213 is a wasteful number, since it uses less digits than its factorization.

20403310213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46332.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20403310213 its reverse (31201330402), we get a palindrome (51604640615).

The spelling of 20403310213 in words is "twenty billion, four hundred three million, three hundred ten thousand, two hundred thirteen".