20012323112 has 16 divisors (see below), whose sum is σ = 37533123360. Its totient is φ = 10003490224.

The previous prime is 20012323043. The next prime is 20012323129. The reversal of 20012323112 is 21132321002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301898 + ... + 362169.

It is an arithmetic number, because the mean of its divisors is an integer number (2345820210).

Almost surely, 2^20012323112 is an apocalyptic number.

It is an amenable number.

20012323112 is a deficient number, since it is larger than the sum of its proper divisors (17520800248).

20012323112 is a wasteful number, since it uses less digits than its factorization.

20012323112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667840 (or 667836 counting only the distinct ones).

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

Adding to 20012323112 its reverse (21132321002), we get a palindrome (41144644114).

The spelling of 20012323112 in words is "twenty billion, twelve million, three hundred twenty-three thousand, one hundred twelve".