12112323020 has 48 divisors (see below), whose sum is σ = 30333477888. Its totient is φ = 3972239040.

The previous prime is 12112322983. The next prime is 12112323037. The reversal of 12112323020 is 2032321121.

It is a self number, because there is not a number n which added to its sum of digits gives 12112323020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1877576 + ... + 1884015.

It is an arithmetic number, because the mean of its divisors is an integer number (631947456).

Almost surely, 2^12112323020 is an apocalyptic number.

12112323020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112323020 is an abundant number, since it is smaller than the sum of its proper divisors (18221154868).

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

12112323020 is a wasteful number, since it uses less digits than its factorization.

12112323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761630 (or 3761628 counting only the distinct ones).

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

Adding to 12112323020 its reverse (2032321121), we get a palindrome (14144644141).

The spelling of 12112323020 in words is "twelve billion, one hundred twelve million, three hundred twenty-three thousand, twenty".