12020320323 has 32 divisors (see below), whose sum is σ = 19434769920. Its totient is φ = 7282046880.

The previous prime is 12020320321. The next prime is 12020320327. The reversal of 12020320323 is 32302302021.

It is a happy number.

12020320323 is a `hidden beast` number, since 1 + 2 + 0 + 20 + 320 + 323 = 666.

It is not a de Polignac number, because 12020320323 - 2¹ = 12020320321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020320296 and 12020320305.

It is not an unprimeable number, because it can be changed into a prime (12020320321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 871386 + ... + 885072.

It is an arithmetic number, because the mean of its divisors is an integer number (607336560).

Almost surely, 2^12020320323 is an apocalyptic number.

12020320323 is a deficient number, since it is larger than the sum of its proper divisors (7414449597).

12020320323 is a wasteful number, since it uses less digits than its factorization.

12020320323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16664 (or 16658 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 12020320323 its reverse (32302302021), we get a palindrome (44322622344).

The spelling of 12020320323 in words is "twelve billion, twenty million, three hundred twenty thousand, three hundred twenty-three".