12020031031223 has 4 divisors (see below), whose sum is σ = 12020822514840. Its totient is φ = 12019239547608.

The previous prime is 12020031031189. The next prime is 12020031031273. The reversal of 12020031031223 is 32213013002021.

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

It is a cyclic number.

It is not a de Polignac number, because 12020031031223 - 2¹⁰ = 12020031030199 is a prime.

It is a super-2 number, since 2×12020031031223² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020031031195 and 12020031031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020031031273) 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, 395719028 + ... + 395749401.

It is an arithmetic number, because the mean of its divisors is an integer number (3005205628710).

Almost surely, 2^{12020031031223} is an apocalyptic number.

12020031031223 is a deficient number, since it is larger than the sum of its proper divisors (791483617).

12020031031223 is an equidigital number, since it uses as much as digits as its factorization.

12020031031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791483616.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12020031031223 its reverse (32213013002021), we get a palindrome (44233044033244).

The spelling of 12020031031223 in words is "twelve trillion, twenty billion, thirty-one million, thirty-one thousand, two hundred twenty-three".