12020331101223 has 4 divisors (see below), whose sum is σ = 16027108134968. Its totient is φ = 8013554067480.

The previous prime is 12020331101221. The next prime is 12020331101243. The reversal of 12020331101223 is 32210113302021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12020331101223 - 2¹ = 12020331101221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12020331101223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020331101221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2003388516868 + ... + 2003388516873.

It is an arithmetic number, because the mean of its divisors is an integer number (4006777033742).

Almost surely, 2^{12020331101223} is an apocalyptic number.

12020331101223 is a deficient number, since it is larger than the sum of its proper divisors (4006777033745).

12020331101223 is an equidigital number, since it uses as much as digits as its factorization.

12020331101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006777033744.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12020331101223 its reverse (32210113302021), we get a palindrome (44230444403244).

The spelling of 12020331101223 in words is "twelve trillion, twenty billion, three hundred thirty-one million, one hundred one thousand, two hundred twenty-three".