20123023112 has 32 divisors (see below), whose sum is σ = 37841472000. Its totient is φ = 10032004224.

The previous prime is 20123023111. The next prime is 20123023117. The reversal of 20123023112 is 21132032102.

It is not an unprimeable number, because it can be changed into a prime (20123023111) 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 7 ways as a sum of consecutive naturals, for example, 8386889 + ... + 8389287.

It is an arithmetic number, because the mean of its divisors is an integer number (1182546000).

Almost surely, 2^20123023112 is an apocalyptic number.

It is an amenable number.

20123023112 is a deficient number, since it is larger than the sum of its proper divisors (17718448888).

20123023112 is a wasteful number, since it uses less digits than its factorization.

20123023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045 (or 5041 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20123023112 its reverse (21132032102), we get a palindrome (41255055214).

The spelling of 20123023112 in words is "twenty billion, one hundred twenty-three million, twenty-three thousand, one hundred twelve".