20313323303 has 16 divisors (see below), whose sum is σ = 25472736576. Its totient is φ = 15768829440.

The previous prime is 20313323227. The next prime is 20313323309. The reversal of 20313323303 is 30332331302.

It is not a de Polignac number, because 20313323303 - 2¹⁰ = 20313322279 is a prime.

It is a super-2 number, since 2×20313323303² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313323309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2101058 + ... + 2110703.

It is an arithmetic number, because the mean of its divisors is an integer number (1592046036).

Almost surely, 2^20313323303 is an apocalyptic number.

20313323303 is a deficient number, since it is larger than the sum of its proper divisors (5159413273).

20313323303 is a wasteful number, since it uses less digits than its factorization.

20313323303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211834.

The product of its (nonzero) digits is 2916, while the sum is 23.

Adding to 20313323303 its reverse (30332331302), we get a palindrome (50645654605).

The spelling of 20313323303 in words is "twenty billion, three hundred thirteen million, three hundred twenty-three thousand, three hundred three".