20331302013 has 96 divisors (see below), whose sum is σ = 35209948800. Its totient is φ = 11169446400.

The previous prime is 20331302003. The next prime is 20331302027. The reversal of 20331302013 is 31020313302.

20331302013 is a `hidden beast` number, since 20 + 331 + 302 + 0 + 13 = 666.

It is not a de Polignac number, because 20331302013 - 2¹⁴ = 20331285629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331302003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4243023 + ... + 4247811.

It is an arithmetic number, because the mean of its divisors is an integer number (366770300).

Almost surely, 2^20331302013 is an apocalyptic number.

It is an amenable number.

20331302013 is a deficient number, since it is larger than the sum of its proper divisors (14878646787).

20331302013 is a wasteful number, since it uses less digits than its factorization.

20331302013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923 (or 4920 counting only the distinct ones).

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

Adding to 20331302013 its reverse (31020313302), we get a palindrome (51351615315).

The spelling of 20331302013 in words is "twenty billion, three hundred thirty-one million, three hundred two thousand, thirteen".