12333031020 has 144 divisors (see below), whose sum is σ = 39126447360. Its totient is φ = 3138588288.

The previous prime is 12333031019. The next prime is 12333031027. The reversal of 12333031020 is 2013033321.

12333031020 is a `hidden beast` number, since 1 + 2 + 3 + 330 + 310 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12333030984 and 12333031002.

It is not an unprimeable number, because it can be changed into a prime (12333031027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1930191 + ... + 1936569.

It is an arithmetic number, because the mean of its divisors is an integer number (271711440).

Almost surely, 2^12333031020 is an apocalyptic number.

12333031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12333031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19563223680).

12333031020 is an abundant number, since it is smaller than the sum of its proper divisors (26793416340).

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

12333031020 is a wasteful number, since it uses less digits than its factorization.

12333031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6884 (or 6879 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 12333031020 its reverse (2013033321), we get a palindrome (14346064341).

The spelling of 12333031020 in words is "twelve billion, three hundred thirty-three million, thirty-one thousand, twenty".