20121323112230 has 16 divisors (see below), whose sum is σ = 36220724444304. Its totient is φ = 8048008613280.

The previous prime is 20121323112169. The next prime is 20121323112257. The reversal of 20121323112230 is 3221132312102.

It is a super-2 number, since 2×20121323112230² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20121323112196 and 20121323112205.

It is a congruent number.

It is an unprimeable number.

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, 64916612 + ... + 65225831.

It is an arithmetic number, because the mean of its divisors is an integer number (2263795277769).

Almost surely, 2^{20121323112230} is an apocalyptic number.

20121323112230 is a deficient number, since it is larger than the sum of its proper divisors (16099401332074).

20121323112230 is a wasteful number, since it uses less digits than its factorization.

20121323112230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130157911.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20121323112230 its reverse (3221132312102), we get a palindrome (23342455424332).

The spelling of 20121323112230 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty-three million, one hundred twelve thousand, two hundred thirty".