20123303013 has 64 divisors (see below), whose sum is σ = 33749084160. Its totient is φ = 11744006400.

The previous prime is 20123302999. The next prime is 20123303041. The reversal of 20123303013 is 31030332102.

20123303013 is a `hidden beast` number, since 20 + 12 + 330 + 301 + 3 = 666.

It is not a de Polignac number, because 20123303013 - 2⁵ = 20123302981 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 (20123323013) 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 63 ways as a sum of consecutive naturals, for example, 895645 + ... + 917837.

It is an arithmetic number, because the mean of its divisors is an integer number (527329440).

Almost surely, 2^20123303013 is an apocalyptic number.

It is an amenable number.

20123303013 is a deficient number, since it is larger than the sum of its proper divisors (13625781147).

20123303013 is a wasteful number, since it uses less digits than its factorization.

20123303013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22327 (or 22321 counting only the distinct ones).

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

Adding to 20123303013 its reverse (31030332102), we get a palindrome (51153635115).

The spelling of 20123303013 in words is "twenty billion, one hundred twenty-three million, three hundred three thousand, thirteen".