12323311020 has 72 divisors (see below), whose sum is σ = 38391020304. Its totient is φ = 3197397888.

The previous prime is 12323310977. The next prime is 12323311141. The reversal of 12323311020 is 2011332321.

12323311020 is a `hidden beast` number, since 1 + 232 + 331 + 102 + 0 = 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 = 12323310984 and 12323311002.

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 23 ways as a sum of consecutive naturals, for example, 918514 + ... + 931833.

Almost surely, 2^12323311020 is an apocalyptic number.

12323311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12323311020 is an abundant number, since it is smaller than the sum of its proper divisors (26067709284).

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

12323311020 is a wasteful number, since it uses less digits than its factorization.

12323311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850399 (or 1850394 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12323311020 its reverse (2011332321), we get a palindrome (14334643341).

The spelling of 12323311020 in words is "twelve billion, three hundred twenty-three million, three hundred eleven thousand, twenty".