20321030023112 has 64 divisors (see below), whose sum is σ = 46896844579200. Its totient is φ = 8038718530560.

The previous prime is 20321030023111. The next prime is 20321030023127. The reversal of 20321030023112 is 21132003012302.

It is a super-2 number, since 2×20321030023112² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20321030023111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15450464 + ... + 16714032.

It is an arithmetic number, because the mean of its divisors is an integer number (732763196550).

Almost surely, 2^{20321030023112} is an apocalyptic number.

It is an amenable number.

20321030023112 is an abundant number, since it is smaller than the sum of its proper divisors (26575814556088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20321030023112 is a wasteful number, since it uses less digits than its factorization.

20321030023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285686 (or 1285682 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20321030023112 its reverse (21132003012302), we get a palindrome (41453033035414).

The spelling of 20321030023112 in words is "twenty trillion, three hundred twenty-one billion, thirty million, twenty-three thousand, one hundred twelve".