12001020323 has 8 divisors (see below), whose sum is σ = 12542839680. Its totient is φ = 11467733760.

The previous prime is 12001020319. The next prime is 12001020349. The reversal of 12001020323 is 32302010021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001020323 - 2² = 12001020319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001020298 and 12001020307.

It is not an unprimeable number, because it can be changed into a prime (12001020313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2130323 + ... + 2135948.

It is an arithmetic number, because the mean of its divisors is an integer number (1567854960).

Almost surely, 2^12001020323 is an apocalyptic number.

12001020323 is a deficient number, since it is larger than the sum of its proper divisors (541819357).

12001020323 is an equidigital number, since it uses as much as digits as its factorization.

12001020323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266397.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12001020323 its reverse (32302010021), we get a palindrome (44303030344).

The spelling of 12001020323 in words is "twelve billion, one million, twenty thousand, three hundred twenty-three".