20303123113 has 32 divisors (see below), whose sum is σ = 26363232000. Its totient is φ = 15184060416.

The previous prime is 20303123111. The next prime is 20303123153. The reversal of 20303123113 is 31132130302.

It is not a de Polignac number, because 20303123113 - 2¹ = 20303123111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20303123111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 763245 + ... + 789397.

It is an arithmetic number, because the mean of its divisors is an integer number (823851000).

Almost surely, 2^20303123113 is an apocalyptic number.

It is an amenable number.

20303123113 is a deficient number, since it is larger than the sum of its proper divisors (6060108887).

20303123113 is a wasteful number, since it uses less digits than its factorization.

20303123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26641.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20303123113 its reverse (31132130302), we get a palindrome (51435253415).

The spelling of 20303123113 in words is "twenty billion, three hundred three million, one hundred twenty-three thousand, one hundred thirteen".